I think you can do all of the above but it depends what it's about
Answer:
The last one is correctly punctuated.
Hope it helps you!!
C. The most important events and rules
PS also the people involved
Answer:
I do not know about your chapter or story but i am guessing he's the hero ,protagonist or some kind of main character
Explanation:
It’s B because it doesn’t really describe anything. Let me know if it’s wrong though.