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, andto the establishment of regional times.
(A) which was determined by when the sun reached the observer's meridian and differing-- S-V error local times is plural -- relative clause can't be made parallel with participle modifier.
(B)which was determined by when the sun reached the observer's meridian and which differed -- same
...
(A) which was determined by when the sun reached the observer's meridian and differing-- S-V error local times is plural -- relative clause can't be made parallel with participle modifier.
(B)which was determined by when the sun reached the observer's meridian and which differed -- same
...







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