Students in the United States seldom applaud after a lecture, whereas students in Europe often applaud or rap their knuckles on their desks. This cultural difference reflects the power of to influence nonverbal communication.

A. display rules
B. emblems
C. encoding
D. politeness norms

(A) Display rules

Explanation:

  According to the given scenario, the culture difference between the two different countries is displaying about the rules for the purpose of influence the type of nonverbal communication.  

 The display rules is one of the type of concept that helps in displaying the different types of social culture with some specific norms. It is the process of socialization and also the interaction with the different types of people.

 Therefore, Option (A) is correct answer.

your answer should be c, it seems to be the only one that makes sense. mark me branliest : )