Because they are monsters so the answer should be C
<span>A higher rating enables mobility in Nosedive. Nosedive is the first episode in season 3 of Black Mirror, a Netflix original based on the concept that everyone receives a rating based on their interactions with each other. A higher rating means a higher life, and one can be rated from 1 to 5.</span>
<span>First, it will contain a subject and verb.</span><span>Next, it will begin with a relative pronoun [who, whom, whose, that, or which] or a relative adverb [when, where, or why].</span><span>Finally, it will function as an adjective, answering the questions What kind? How many? or <span>Which one?
So the answer is C. relative pronoun.</span></span>