The correct answer is - C. A male black bear eats fish in an area of a lake, so other black bears can't.
The intraspecific competition is a competition between the members of the same species for resources and territory. The indirect competition, in this case, would mean that the members from the same species do not get into a direct physical confrontation over the resources, but instead avoid each other and once one member occupies one place, the other one goes to another space that is not occupied.
In this case, with the black bear, the bear has occupied a spot at the lake where it feeds itself. Even though it is using the food resources, the other bears don't physically confront it, but instead pick another place on the lake that is free for using the same food resources.
