What mood does the author create in these sentences from "the lady or the tiger? "

when people gathered together on one of the great trial days, they never knew whether they were to witness a bloody slaughter or a hilarious wedding. . thus the masses were entertained and , and the thinking part of the community could bring no charge of unfairness against this plan; for did not the accused person have the whole matter in his own hands?

a.
suspicion

b.
disapproval

c.
annoyance

d.
humor