Which of These Is a Drawback of Adhering to Display

Which of these is a drawback of adhering to display rules that dictate which emotions are appropriate in particular situations?

A) There is no societal agreement on these rules.
B) Facial expressions used to display basic emotions, such as anger or disgust, differ from culture to culture.
C) Verbal messages are much more powerful than nonverbal sources of information, especially when verbal and nonverbal messages are incongruent.
D) Microexpressions often give away momentary lapses in the control of our expressions.