Which of the Following Attitudes Would Be Most Helpful If

Which of the following attitudes would be most helpful if you encounter a practice in another country that you think is unethical?

A) "I won't interact with these people as long as they're acting like that."
B) "My culture's values are the purest in the world. This country is immoral."
C) "Perhaps I should be open to this practice, because I know that even back home not everyone agrees what the right approach is."
D) "Even though this is a morally significant problem, I will just do as they do while I'm in this country."