The Practice of "Gift Giving" Between the Parties to a Business

The practice of "gift giving" between the parties to a business negotiation is considered right and proper behavior in many Asian cultures.However,some Westerners view the practice as a form of bribery,and therefore unethical,particularly if the gifts are substantial.This reflects that

A) notions of ethics are universal.
B) Asian countries are still under the influence of totalitarianism.
C) what is ethical depends on one's cultural perspective.
D) Asian cultures are more economically advanced.
E) there is unanimous agreement about accepted employment practices.