B is the answer for this question
1.) who
2.) why
3.) whose
4.) what, how
5.) that
6.) why
7.) whether
8.) when
9.) what
I hope you can use words over again in this case. Let me know if you need explanations!
it means that he couldn't find a sign of Nancy in the apartment
Answer: ima say no its not a RUN-ON sentence
Explanation: