The correct answer is: A. Only argument I is strong.
Argument I is strong because it is based on sound reasoning and evidence. High chimneys disperse pollutants over a larger area, which reduces the concentration of pollutants at ground level. This can improve air quality and reduce the health risks associated with air pollution.
Argument II is weak because it is based on a false premise. The fact that high chimneys emit pollutants into the upper atmosphere does not necessarily mean that they increase pollution. In fact, high chimneys can actually help to reduce pollution by dispersing pollutants over a larger area.
Here is a more detailed explanation of each option:
- A. Only argument I is strong. This is the correct answer because argument I is based on sound reasoning and evidence, while argument II is weak.
- B. Only argument II is strong. This is incorrect because argument II is weak.
- C. Either I or II is strong. This is incorrect because only argument I is strong.
- D. Neither I nor II is strong. This is incorrect because argument I is strong.
- E. Both I and II are strong. This is incorrect because argument II is weak.