sentence completion.. please help me

The symbolic nature of the arts in communication is related to what is undoubtedly their most important function?that of _____. Through the arts, the beliefs, values, ethics, knowledge, emotions, and ideology and world view of a culture are expressed and communicated. The art forms of a society do not merely reflect culture and society. Participation in cultural performances fosters the unity and harmony of a society in a way that is intensely felt by its members.
(A) disjunction (B) variation (C) interpretation
(D) segregation (E) integration