Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. 

A. economics

Đáp án A

A. economics /ˌiːkəˈnɒmɪks/

B. philosophy /fɪˈlɒsəfi/

C. experiment /ɪksˈpɛrɪmənt/

D. biology / baɪˈɒləʤi/