Choose the option that supplies the correct verb and the correct explanation for the verb choice in the following sentence:
a-Neither Elisa nor her daughters their bikes as much as they used to.The verb should be ride because a compound subject always requires the plural form of the verb.

b-The verb should be rides. When a compound subject is joined by or or nor, the verb should agree with the subject listed first, which in this case is singular (Elisa).

c-The verb should be ride. Whenever two subjects are joined by or or nor, the subject becomes plural and requires a plural form of the verb.

d-The verb should be ride. When a compound subject is joined by or or nor, the verb should agree with the subject closest to it, which in this case is plural (daughters).