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

Question

The sky grew ____ rain began to fall.

Accepted Answer

A. dark; then. Two complete sentences can be joined by a semicolon.

Answer

B. dark, then — A comma alone is a comma splice.

Answer

C. dark then — The sentences run together.

Answer

D. dark; and then — A semicolon is not followed by "and".

Standard English Conventions practice question