— Should people stop using their cars and start using public transport?— . The roads are t

问题补充：

— Should people stop using their cars and start using public transport?

— . The roads are too crowded as it is.

A. All right

B. Exactly

C. Go ahead

D. Really

答案：

A. All right

(答案→)B. Exactly

C. Go ahead

D. Really

解析：考查交际用语，根据上下文的理解，答语是同意问句的观点。所以用exactly表示赞同或强调正确，意为：一点不错，正是如此，完全正确。