Choose the word (A, B, C or D) that best fits the blank space in the following passage.

Britain will soon ban smoking in cars with children. Britain's government wants (21)_________ the harm cigarette smoke does to children. New laws will cut the chances of chilren passive smoking. This is when someone breathes in the (22)_________from other people's cigarettes. Many studies say passive smoking can almost be as (23)__________as actually smoking a cigarette. The British government says that it has looked at search poiting out that children who sit in smoke-filled cars have (24)__________problems. It is particularly bad in cars because there is so little space, so the car fills with smoke very quickly. (25)__________ agrees with the new law. Some lawmakers argue that it takes away the freedom for people to smoke in their own car. However, Britain's health minister states that the health of children is more important than the freedom to smoke.