Select the Revised Sentence with Parallel Structure

Multiple Choice

Select the revised sentence with parallel structure.
-The concert will begin at nine; midnight is when it will be ending.

A) The concert begins at nine; it ends at midnight.
B) The concert begins at nine; at midnight it will be ending.
C) The concert will begin at nine; at midnight is the end.
D) The concert will begin at nine, ending at midnight.