Greeting's!
<span>A: continents
__________
</span>
I believe the answer is D. the reason is because, in a comedy, the audience is laughing at something the actors intend to do depending on the situation, it may usually be a comedy that is sad but still its funny, meanwhile In a tragedy, the story is usually about heartbreak and pain, its very serious, and the audience will usually be quiet, and focused on the situation of the tragedy that occurs in a role.
My personal opinion to what the answers are:
Readers are uneasy with the narrator's growing instability,
Readers question the narrator's ability to act rationally,
Readers understand that the account given by the narrator is true.
I hope this helped, again, this is only my opinion to what I believe the answers are.