Answer:
B
Explanation:
A, C, and D all have commas where they are NOT necessary, so they are sentences that are considered NOT to have proper punctuation. Thus, the answer is B.
The correct answer is the second one.
They can't work/function on their own... and they're short. Hope this helps!
I think it is D) By the end of the story - no one could believe it - the main character was dead
