Resident Relative - MCQ Debate

I'm stuck on a Judicial Services exam question with my friend. We both have strong arguments, but somehow our answers differ. I'd love to get some clarity on this one.

MCQ: In the context of the Hindu Minority and Guardianship Act, 1956, which of the following is a 'residential relative'?

A) A person of a class who has not obtained the care of the minor by legal adoption but has been entrusted with the minor's custody by the parent or guardian.

B) A person who has been entrusted with the minor's custody by the parent or guardian, and has been maintaining the minor for a total period of six months prior to the petition.

My friend thinks option B is correct, citing that it emphasizes the actual period of maintenance.