My mother was cooking while I the radio.A. listened toB. have listened toC. was listening

My mother was cooking while I the radio.
A. listened to
B. have listened to
C. was listening to
D. is listening to

A. listened toB. have listened to(答案→)C. was listening toD. is listening to解析：while作为连词，可以连接两个并列发生的动作，同时发生，故选C，表示这两个动作同时发生。

就是这个解释