Let's think step by step! Which type of pollution is most harmful to lungs?\nOptions:\n- (A) Lead\n- (B) air\n- (C) Cars\n- (D) oil\n- (E) acid\n- (F) CFCs\n- (G) SO2\n- (H) mold
The thinking starts now:
User
Air pollution harms the respiratory and circulatory systems. Exposure to ozone can diminish lung function and increase susceptibility to respiratory infection. Exposure to air pollution can harm the lungs. The final answer: (B).
Assistant