Which Two Issues Particularly Complicate Teaching About Cultures and Engendering

Which two issues particularly complicate teaching about cultures and engendering an acceptance of cultural diversity?

A) the money and time we have for curriculum changes
B) deciding which cultures should be represented and the predominate religious beliefs within a school system
C) deciding which cultures best illustrate the concepts of universality of cultural pride and shame
D) deciding which cultures should be included and how to teach about them