Question

Which of the following is an adverb phrase in the following sentence? At 3 o'clock, traffic around the Atlanta metro area builds with many cars as people try to get home. A) At 3 o'clock B) around the Atlanta area C) with many cars D) to get home

Answer 1

The answer is C.
It's hard to explain, but you are with many cars. Being with is your action, many is your adjective, so that makes the phrase and adverb phrase

Answer 2

The answer is B.... "around the Atlanta area"