Sentence Correction

Dear Friends,

I was having problems in answering the following question.

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 observer'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


Please help.

OA after some discussions.

Regards
Deano.

Dean Jones wrote:Dear Friends,

I was having problems in answering the following question.

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 observer'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


Please help.

OA after some discussions.

Regards
Deano.

I am in between C & E. will go with C.

user123321

user123321

E is good. local times determined and differing

All statements starting with "which" are wrong as they are too lengthy in this case.

(E) is correct due to the following reason

Local times-determined by when the sun reached the observer's meridian (Once )
Local times-differing from city to city(All the times so present participle/gerund)

OA is option E