According to the passage, what can be suggested about the flirting of animals?

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions from 38 to 42

Flirting is a fundamental fixture in the sexual behavior repertoire, a time-honored way of signaling interest and attraction. It is a kind of silent language spoken by men and women around the world. The ways people communicate interest are so deeply rooted in human nature that the signals are automatically understood by all: from ways of glancing to movements such as licking one's lips, to meet nature's most basic command—find a good mate and multiply.

Flirting is not a trivial activity; it requires many skills: intellect, body language, creativity, empathy. At its best, flirting can be high art, whether the flirter is vying for a soul mate, manipulating a potential customer, or just being playful.

The process of flirting allows the signaling of interest to another in small increments, which is especially appealing to a partner. Flirting is driven by emotions and instinct rather than logical thought. Yet the gestures and movements used in flirting also provide reliable clues to a person's biological and psychological health.

Flirting has many parallels in the animal world, seen in the behavioral displays many animals engage in to signal not only their availability but their suitability. For example, penguins search for small pebbles to deliver to their partner of interest. Seahorses lock their tails together for a romantic swim. Bower birds use leaves, grass, and twigs to construct elaborate nests.

Across the animal kingdom, such actions are closely tied to seasonal reproductive readiness and signal reproductive fitness by one creature to another. Among humans, the repertoire of flirting behaviors can be deployed at will and the exact meaning of any gesture is usually a matter of interpretation.

Read the following passage and mark the letter A, B, C, or D to indicate the correct answer to each of the questions from 43 to 49.

Education technology (EdTech) is one of the few industries experiencing a sharp upward demand, reinforcing its potential for profitability and the role it can play in societal wellbeing.

The global spreading of the coronavirus (COVID-19) has required drastic regulations in an effort to contain it. One of the first compulsory measures taken by affected countries has been the closure of all schools. The sudden adjustments of educational processes and altered dynamics between all involved parties - schools, teachers, students and parents – are challenging familiar routines and threatening crucial public objectives. Accordingly, the World Bank has commissioned its EdTech expertise team to support policymakers worldwide in facilitating the continuation of basic education by adapting to modern technologies.

EdTech's practical value has hence rapidly improved from its pre-pandemic standing. Previously considered an option for quality education and a supplement to traditional schooling systems, it is now essential for preserving a progressing society.

Institutions previously working with digitalized education platforms have already benefitted during the COVID-19 crisis from their contemporary approach. These schools smoothly mastered the sudden transition to homeschooling, easing the adjustment process for students and parents. Their early investment in equipment and software and in coaching of educational staff has allowed them to continue their operations with minimal interruption.

Investors have long identified the windows of opportunity offered by technology in the classrooms. However, its recent unprecedented expansion highlights even more its sustainable profitability. “So far only 2 to 3% of the 5 trillion USD spent globally on education is digital. This, combined with EdTech's sudden vital role during COVID-19 and the significant differences seen up to now in its geographical investments, intensify the previously unseized global growth opportunities", says Dr. Kirill Pyshkin, Fund Manager at Credit Suisse Asset Management.