Mood is defined as

a. a general feeling.
b. a speaker's style.
c. an author's attitude.
d. an expressed view.

Mood is the authors attitude toward a text. So the answer would be C. An authors attitude. :)

do you have any answer choices ? ?

explanation:

impartial means: treating all rivals or disputants equally; fair and just.

i would say that impartial is agreeing with something, because impartial means to treat your rivals, arguments, and reasoning equally and fair. so if you rival says something, agreeing on it means you did the impartial.