Explanation:
one that is antagonistic to another especially : one seeking to injure, overthrow, or confound an opponent. 2 : something harmful or deadly alcohol was his greatest enemy. 3a : a military adversary. b : a hostile unit or force.
Evidence to back up your reasoning
The answer is B: As an Adverbial Prase. A <em>Prepositional Phrase</em> includes a preposition, its object and its modifiers. The Prepositional Phrases can function as <em>adverbial phrases or adjective phrases</em> to modify other words in the sentence. In the example, " Hearing the key<em> in the lock</em>" and "...dashed <em>to</em> <em>the front door</em>." in and to are <em>prepositions </em>that are used to form the two prepositional phrases: "in the lock" and "to the front door."
The answer would be A because clustering means congrete.
