41.
When incompatibility arises between two or more roles an individual is expected to perform in a griven situation, the situation is called . . . . . . . .

43.
Role indicates what

47.
Age is considered an important cause of role-differentiation because:

50.
Who of the following has said that, "Since each person has but so much time, energy and ability and since his activities must achieve results and satisfy needs, his system of statuses must be integrated"?