Which choice completes the text so that it conforms to the conventions of Standard English?

Question

Whether the manuscript is genuine ____ a question the auction house declined to answer.

Accepted Answer

A. is. The whole clause "Whether the manuscript is genuine" is the subject; nothing separates it from "is".

Answer

B. , is — A comma between subject and verb.

Answer

C. ; is — A semicolon leaves a fragment on each side.

Answer

D. — is — A dash between subject and verb.

Standard English Conventions practice question