I would say older age people and very young children . You didn't give us opinions, so this is the best I can do.
Children who grew up in that time had their careers decided upon from their birth
It does not express a complete thought so we know it is not that. I know for a fact a dependent clause has adverb clauses. hmm...And I know 100% that it cannot be a complete sentence by its self. So the only answer that makes sense to me is B. Hopefully I helped and can you medal me?