Question

Which sentence is a run-on sentence?

A.
Andrea knew she was ready to run in the marathon; she had trained for weeks prior to the race.
B.
Michael needed more paper for the printer, so he bought some when he went to the office supply store.
C.
Whenever Michael went to the library, he checked out at least three books to read.
D.
Stephanie ran out of detergent, she made a note to buy some more the next time she went to the store.

Answer 1

B. The information that he went to buy some at the office supply store was not needed

Answer 2

A

Step-by-step explanation:

it's a because it says she trained before the race witch is more of a run on sentence than any other one