Belching at the Dinner Table Is Considered Rude in Many

Multiple Choice

Belching at the dinner table is considered rude in many Western cultures, but is considered a compliment to the host or cook in some African and Asian countries. This is an example of

A) Why different cultures cannot understand each other.
B) Why you should never belch.
C) Norms being consistently the same.
D) Norms varying across cultures.