Which Statements Are True Regarding: Uncertainty Anxiety Management

Which statements are true regarding: Uncertainty Anxiety Management:

A) Understanding how to deal with difference when interacting with someone from a different group.
B) According to this theory, the person who can control both the uncertainty and anxiety will share better understanding as well as be more adaptive - the outcome being effective communication.
C) It is natural that we are usually comfortable with those who are familiar to us; however, we experience anxiety when interacting with people who are unfamiliar.
D) All of the above