Answer: With whom
Explanation: whenever I am looking at these types of problems, I substitute the options for (he/him) and whichever is grammatically correct in that sense is the answer.
Thank youuuu I thought it was this one too but I was hesitant!
The answer is A. ;) I hope this helps out.
I believe it means to harm someone
Your answer would be 3 because that is how the plot slowly reveals