Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

A. When language is a barrier, people will find other forms of communication. 

B. Everybody uses only one form of communication. 

C. Nonlinguistic language is invaluable to foreigners. 

D. Although other forms of communication exist, verbalization is the fastest.