Answer:
It is third person point of view.
Explanation:
The narrator refers to the main character, Marvin, using the pronoun "he." This makes it a third-person point of view.
I also agree that the answer is B: whom
in this sentence you are using the preposition + whom grammar structure. Whom is considered an object pronoun and is used when asking who will receive the action, which in this case, I believe is, baking those cookies. Hopefully this makes sense and good luck.
Answer:
As a result, most of the relationships are becoming tense. People have been stuck up in the attic with each other for a very long period of time, and they are growing restless.