The purpose of a(n) is to allow the writer to express a viewpoint that opposes a stated opinion on a topic.

a) anecdote
b) claim
c) counterclaim
d) topic

C) Counterclaim.

Explanation: an argument or claim is a statement assertion that something is true. A counterclaim is a statement or an idea that refutes the claim. An anecdote is a short amusing or interesting story about a real incident or person and a topic is a subject. So from the given options, the one that allows the writer to express a viewpoint that opposes a stated opinion on a topic, is a counterclaim, corresponding to option C.

ma”am had a granddaughter who lived a couple blocks away from her school who later on then met friends