Which focus phrase does this sentence follow?
I always avoided that hall, for it was overrun with eighth graders and a mixture of smells gone sour.
Group of answer choices
A. I join sentences with a comma and one of the FANBOYS.
B. If I use two or more adjectives in a row, I may use commas to separate them.
C. I join sentences with a comma.
D. I flipped the subject and the verb.