Answer:
D. Parallelism
Step-by-step explanation:
Parallelism (also referred to as parallel structure or construction) is the use of two or more phrases or clauses in a sentence that have similar or the same grammatical structure. It has multiple purposes - to give balance, clarity, pattern, or rhythm.
The given sentence contains several clauses in which parallelism is obvious. They begin with the word who and present simple tense (who prefers, who (constantly says), who (pathetically) believes, who lives, who (constantly) advises).
This is why option D is the correct one.