Which words in the sentence make up the adjective phrase? the boxes in the basement need to be brought upstairs. a. in the basement b. the boxes c. brought upstairs d. need to be

Well the meaning of an adjective phrase is: group of words that describe a noun or a pronoun in any type of sentence. 

So it's B. Because it's collective 'Boxes' as we know and an adjective phrase is a group of words that describe a noun or a pronoun.

Hope this helps :)

My answers is c

Explanation:

McKenna overheard her mother say on the phone, “We’ll see you in fifteen minutes, Mom.” Fifteen minutes later, the doorbell rang. McKenna thought to herself, “My grandmother is here.”