Adjective phrase is a group of words that are used to describe a noun. In this sentence the phrase "from our vacation" describes the noun and subject of the sentence photographs. Therefore, you are correct the answer is C.
The answer is <span>Each day, he studied the way successful hip-hop artists like E-z would dress and act, from the color of their socks to the way they kept their eyelids half closed, giving the impression that they were cool, to bother looking at an inferior world.</span>
