Read the following sentence. Neither Idaho nor California produce the largest amount of cheese in the United States.

How should the sentence above be rewritten to correct the subject-verb error?
A.
The sentence is correct as it is written.
B.
Neither Idaho nor California are producing the largest amount of cheese in the United States.
C.
Neither Idaho nor California produces the largest amount of cheese in the United States.
D.
Neither Idaho nor California were producing the largest amount of cheese in the United States.