Which of the Following Statements About Collectivist Cultures' Display Rules

Which of the following statements about collectivist cultures' display rules is true?

A) The expression of emotion should be generally suppressed, especially around ingroup members, so as to maintain group harmony
B) The expression of negative affect should be greater around ingroup members than outgroup members, as a sign of respect
C) Emotion suppression is cognitively costlier for people in collectivist cultures than individualist cultures
D) Both A and B
E) All of the above