Question

Which of these sentences is Not a run-on sentence?

a. I stood up started walking

B. I made the rice no one ate it

C. She cooks well, but she doesn’t serve well

D. I’m very active I’m going for a walk

Answer 1

A. but they all aren't run ons

Answer 2

I believe the answer is B. She cooks well, but she doesn't serve well. I think this because the "but" is added. The rest have no "but" or anything to make the sentence a sentence.