当然是c了.首先这是定语从句.主干是The bicycle is made in shanghai.
看到which先想定语从句,然后看which后的句子是否残缺,缺哪部分,看他与先行词的所属关系.很显然句子想表达这个自行车就是他每天骑着去学校的车子,she goes to school on the bicycle every day.介词可以提前,放在which之前.
同时该题又考察介词问题,on the bicycle/by bicycle