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

Đáp án C

Preservative /prɪˈzɜːvətɪv/ (adj): để bảo quản, để gìn giữ

Congratulate /kənˈɡrætʃəleɪt/ (v): chúc mừng

Preferential /ˌprefəˈrenʃl/ (adj): được ưu tiên

Development /dɪˈveləpmənt/ (n): sự phát triển