According to the interviewer, which of the following best indicates the relationship betwe

According to the interviewer, which of the following best indicates the relationship between choice and mobility？

A．Better education→greater mobility→more choices.

B．Better education→more choices→greater mobility.

C．Greater mobility→better education→more choices.

D．Greater mobility→more choices→better education.

请帮忙给出正确答案和分析，谢谢！