Chinese people usually address others in terms of blood or family ties, even though these kind of relationships may not actually exist. Such terms include “警察叔叔”,“售票员阿姨”,“这位大爷”ect. Why Chinese people prefer to address others in such a way?
选项：

A:It is because of the collectivism culture which emphasizes on enclosing interpersonal relationship by intimate address terms.
B:It is because of the politeness concept which emphasizes on respecting the elderly by addressing them such terms.
C:It is because of the family concept which emphasizes on constructing a family-like society without interpersonal differences.
D:It is because of the modesty principle which emphasizes on treating strangers like families so as to show respect to them.