Question

Which word in the sentence is a common noun? People who live in Ohio may be called Buckeyes.

A. called
B. People
C. Ohio
D. Buckeyes

Answer 1

people is a common noun

Answer 2

The only common noun in this sentence is B) people.
A) is not even a noun, that is a verb.
C) and D) are both proper nouns, used to show the name of somebody or some place.