Ethnocentrism causes which of the following communication barriers? a. Ethnocentrism can cause people to share too much personal information. b. Ethnocentrism causes people to develop negative attitudes about others. c. Ethnocentrism can lead people to use the wrong language when communicating. d. All of the above are communication barriers caused by ethnocentrism.

Ethnocentrism happens when other cultures evaluate or judge others according to their own preconceptions based on their culture's standards. Ethnocentrism can cause people to share too much personal information and develop negative attitudes about others. It can also lead people to use the wrong language when communicating. Therefore, the correct answer is all of the above. All of the choices given are communication barriers caused by ethnocentrism.