Who Among the Following Can Give Consent for a Third

Multiple Choice

Who among the following can give consent for a third person?
I. parents for their minor children.
II. roommates, consenting to searches of the common areas, for those who share apartments with them.
III. wife consents to a search of house she shares with spouse.
IV. janitor consents to a search of his suspect employer's premises.

A) I, II, III, IV
B) I, II, III
C) II, IV
D) I