Question

Which of the following is a run-

on sentence?
A. Della was slender, and she had mastered the
art of seeing herself in that narrow mirror.
B. Della was slender; she had mastered the art of
seeing herself in that narrow mirror.
C. Della was slender she had mastered the art of
seeing herself in that narrow mirror.
D. Della was slender. She had mastered the art
of seeing herself in that narrow mirror.

Answer 1

Answer: C. Della was slender she had mastered the art of seeing herself in that narrow mirror.

Explanation: The clauses in this sentence are not separated with punctuation such as a comma, period, or semicolon as seen in the other options.