I'm thinking the answer is B i think A is wrong because the majority of teens don't do so to impress their parents
i think C is wrong because alot of teens don't work with their friends
and D is wrong because most teens don't want to work with school on top of it.
However, with option B teens would want to work to spend money on things their parents wouldn't buy/find important such as song albums, snacks, instruments, expensive clothes, a poster, maybe even a phone if they don't have one.
Sorry if it's wrong i tried ¯\_(ツ)_/¯