Which of the following selections contains a run-on? If none of the selections contains a run-on, select "Correct."

(a) Everyone praised Matthew for his will power.

(b) He quit smoking five years ago, he still craves a cigarette from time to time.

(c) Addictions are hard to break

(d) Correct

I think they are all correct sentences but I'm starting to question if (c) is a run-on.

3 answers

b is the correct answer. it should be put into 2 sentences
I'm sorry, I put that I was doubting (c) but ment to put (b).

Thank You
B has the run-on, yes.