单项选择题

The three points of view that indicate the relations of individuals are ______.

A.relations characterized by natural development; relations that are culturally determined; socially accepted behavior among the group
B.relations to natural and unnatural world; relations among people; conditioned relations
C.relations to organic and inorganic outer world; relations among human behavior; objectively conditioned relations
D.relations to living environment; relations among members of the same social group; subjectively conditioned relations