MARK THE LETTER A, B, C OR D ON YOUR ANSWER SHEET TO INDICATE THE CORRECT ANSWER TO THE FOLLOWING QUESTION

Câu 19: Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to the following question. A person who has been chosen to speak or vote for someone else on behalf of a group is called a(n) _________. A. contestant B. competitor C. examinee D. representative