To make sure she wasn’t the last girl who made it in the super bowl
Some animals require different types of nutrition to promote good health.
The correct answer is B) because a run-on sentence is a sentence which is incorrectly punctuated. In this case, B doesn't have the right punctuation mark. Instead of a comma (,) perhaps a semicolon (;) should be used.
He was trying to invent a way to recycle old sneakers
