The correct answer is:
b. The mood of both works is miserable.
Mood is they way the viewer or author feels about a certain video or when writting the book. In this case they both experienced unfortunate events such as, illegal acquisition of elephant ivory, the scarcity of potable water,the rampant spread of AIDS, kidnapping among innocents by the army, among other struggles.
I and a i think since it only counts as one
Lachrymose means very sad and tearful.
Sentence: She was lachrymose after she heard that her parents died for her sake.
False, a teacher always gives clue of the main idea