Answer:
Experiments reveal that human behavior is greatly influenced by humans' desire to fit in.
I believe that the best answer for this question is an adjectival prepositional phrase because it describes a noun. It modifies the words "a pygmy hippo," which is the subject of the sentence and therefore a noun. Adjectival prepositional phrases modify nouns, while adverbial prepositional phrases modify verbs, adverbs, or adjectives. Hope this helps.
They answer cannot be D, because the positioning of actors on the stage isn't one of Aristole's elements of drama.
It cannot be C, because costumes aren't a part of stage directions.
It can't be B, because costumes aren't a part of dialogue.
Therefore, the answer must be (A) staging, because it's the only one that includes them all.
