Which of the Following Is an Example of Cultural Relativism

Which of the following is an example of cultural relativism?

A) Ingrid becoming upset over the course language used in the Australian Outback.
B) Andy marrying a woman who does not practice his religion, though his parents disprove.
C) Helena putting aside her vegetarianism to eat meals with the local tribe she is studying.
D) Joseph protesting the Running of the Bulls while visiting Pamplona.