Males of Some Species Sometimes Cooperate in Acquiring a Mate

Males of some species sometimes cooperate in acquiring a mate, but then only one of the group actually does most or all of the mating. For example, male lions (Panthera leo) form coalitions in order to acquire a harem of lionesses.

A) Coalitions of males will accept unrelated companions even after they have become residents in a pride.
B) Coalitions of three to six males are less successful in the long term than a coalition of only two males as a result of rivalries that inevitably develop within larger coalitions.
C) Long-term, successful coalitions are always made up of related individuals.
D) When experimentally presented with a stuffed "intruder" lion, lions attacked it, regardless of whether or not they were related to other members of the coalition.