Answer:
A few weeks ago we bought a pet snake and invited some guests over to look at it, but they couldn't come because all the electricity in the city went out.
In this context, it would be who. One would use whom to sound smart, but if used incorrectly, sounds ignorant.
Answer:
1) First person
Explanation:
Using "personal" pronouns as I call them, such as I or we, tells us that the story is in first person point of view.
