急求一道语法题解释，谢谢

iamdurant

请各位高手看下这题，答案选E，求解释，谢谢！！！急求

The growth of the railroads led to the abolition of local times, which was determined by when the sun reached the observer’s meridian and differing from city to city, and to the establishment of regional times.

A.which was determined by when the sun reached the observe’s meridian and differing

B.which was determined by when the sun reached the observer’s meridian and which differed

C.which were determined by when the sun reached the observer’s meridian and differing

D.determined by when the sun reached the observer’s meridian and differed

E.determined by when the sun reached the observer’s meridian and differing

clumsy123

主要是and前后要平行一致，determine和differing都是做定语修饰local times的（这个我不太确定，还望NN指点）

AC 都不平行，B 第二个which多余，D的differed形式错，应该是differing，主动的