Answer:
I would choose A but i don’t know the context before or after this sentence
Explanation:
Brooded means: Thinking deeply about something that makes someone unhappy
They had prosperous economy(great progress in agriculture, commerce, and handicraft industry) and flourished in science and technology such as developments of compass, gunpowder, and movable type printing.
Yes that’s very good not gonna lie
He likes a challenge, wants to take credit for Eliza's transformation and win the bet with Colonel Pickering. I think