Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks. 

     Many of us enjoy art, and a beautiful painting often evokes a positive response, such as admiration and wonder. (39) ________ for some people, viewing a work of art can set in motion a series of disturbing physical effects, such as rapid heart rate, dizziness and even fainting. 

     In 1817, the author Stendhal had such an experience while visiting Florence, an Italian city (40) ________ by churches and museums famous for their art treasures. When Stendhal looked up at church ceiling, he was so astonished by the beauty of the frescoes that his heart began to beat rapidly. His symptoms (41) ________ and he almost fainted. Since then, some people visiting Florence – foreign tourists, by and (42) ________ have experienced a reaction. The effects are usually mild and quickly disappear, but sometimes they are substantial (43) ________ to require medical attention.