Based on the information in the passage, the narrator's mother feels toward the
humans.

perilous

Explanation:

The narrators mother feel unsafe with the human as she has seen her brother who a scientist and was experimenting a destructive and poisonous biological weapon which was to be used in a war. The mother feels that human are only concerned with their own-selves and does not care whether the other person is harmed by his act.

for me, i'd go with (c) satisfied or (b) overjoyed because if you read it a couple of times, it makes since that it is c or b. it can't b (a) angry because booker was never angry about anything. at the end of the paragraph, booker states, "i think there are not many men in our country who have had the privilege of naming themselves in the way that i " i think that sentence kind of gives away the also, some words in the paragraph can also you like for example, "indulged," "calmly," "perplexity," "privilege," and defining words that you don't know, can you understand more of that paragraph and it can also increase your comprehension. : )

i'm really rally sorry if i'm incorrect, but if i'm hope this ! : )

the answer is b. the tomb is underground and dark, and its opening is covered by a heavy grate.