The answer is option C <span>a metaphor that sustains the comparison for several lines, or for an entire poem.
Reason:
The answer is option C because extended metaphors are used in poems or any other type of writing that repeats the metaphor. Its not A because it is indeed a comparison but it does sometimes states it directly. Its not option B because metaphor are used but not in a daily use. Its also not D because there describing a simile.
Because everything is based on social media and trying to fit in and how and what impresses whom, instead people need to find someone who they get along with and can just be themselves.
