Answer:
D- suppress: end
Step-by-step explanation:
The pattern here is synonym: synonym.
Option D is the only one that follows that pattern
Elimination:
A hermit is someone who shields themselves from the world, so they would not be popular, that is antonym/antonym
A bully has no compassion for their victims, so again, antonym/antonym
A Porcupine, of course, can be friendly, but that would be object: demeanor so no, again.