The comparative form of adjectives compares
a. at least a dozen different items.
b. two things or people.
c. more than two things or people.
d. the past to the present.

The correct answer is B. Comparative form of adjectives compares two things or people. They are used in sentences where two nouns are are compared. For instance, "My house is smaller than hers.", "Your dog runs faster than my dog."

The question is b i think