The superlative form of an adjective should only be used when comparing

A. a person to him or herself.

B. more than two things.

C. two people or three items.

D. one thing to another.

Adjective comes in three degrees of comparison. It includes: positive degree (one thing is described), the comparative degree (two things are compared) and the superlative degree (three or more things are compared). Thus, on this item, the answer should be letter B. The superlative form of an adjective should only be used when comparing more than two things.