It's to separate 2 independent clauses.
Answer:
I hope answered the question correctly for you:)
Explanation:
1. The feeling was <u><em>palpable</em></u> in the air above the audience.
The same <u><em>scruples</em></u> endured among the medieval Cathars
2.He rode silently on his small gray horse, <u><em>indolently</em></u> answering suggestions that they should attack.
His efforts were worse than <em><u>futile</u></em>./She sighed at the <em><u>futile</u></em> thoughts.
3.When she was young and naive, she had dreamed of such a job.
We felt no moral scruples about the possible future abuse of our brain child.
.
Answer:
I think Historical fiction
