Which sentence uses a verb that agrees with its compound subject?

a. Devon or Cara were hungry.

b. Neither Felicity nor Francine have ever baked lasagna.

c. The lion tamer or the sword swallower are the most amazing act in the circus.

d. Either the leather jacket or the winter coat looks warm enough.

The correct answer is D, "Either the leather jacket or the winter coat looks warm enough". According to the subject-verb agreement, the verb in an either/or or neither/nor sentence should agree with the noun or pronoun closest. So in this case, the winter coat is closest and is singular therefore the verb should also be singular as presented by the verb "looks".