Who of the following has said that, "Ethnocentrism is that view of things in which one's own group is the centre of every thing and all others are scaled and rated with reference to it"?

A group whose members can join as many groups as they like is called:

A. Vertical group

B. Horizontal group

C. Over-lapping group

D. Out group

Which of the following is not the advantage of a primary group?

A. It helps in the development of personality

B. It increase efficiency

C. It develops sense of contentment

D. It helps in the appreciation of view point of the others

Which theory has laid focus on the fact that in a crowd people try to behave in a fashion that social code of conduct is violated?

A. Group Mind Theory

B. Lebon's Theory

C. Freudian Theory

D. None of the above

Which one of the following is a social group?

A. Church

B. Labour union

C. Audience

D. Crowd