Bought [ I dont know is correct or not......
The answer is B They support the text.
. The answer would be A, he believed being imprisoned (even if only for a single night) merely kept his body in place. His mind was still free and imprisonment only further fueled his philosophical thinking, if you can call it that. Heads up though, next time you should include what text the question addresses.
The sentence that is a compound sentence would be B. Since it provides 2 mail points or actions combined within a single sentence, there are 2 main events occurring within the sentence whereas the other options only describe one.
Mark saw the kangaroo, but he didn't take a picture.
Both Mark seeing the kangaroo and not taking the picture are these events combined within this sentence.