Option B is the correct answer.
B. to explain something
Because he explains about Flamenco dance.
The correct answer is C. metaphor.
"Bright beams" that Nature has wrapped in black are Stella's eyes. In a way, it is also a simile, but every metaphor is a contracted simile (without "like").
There are other literary devices in this passage as well: contrast (black - bright), rhetorical question (one that doesn't have an answer, or an answer is obvious)...
Answer:
People who do not find ways to belong may feel forsaken by others.
Explanation: