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. customer

Đáp án D

A. customer /ˈkʌs.tə.mər/

B. stationery /ˈsteɪ.ʃən.ər.i/

C. furniture /ˈfɜː.nɪ.tʃər/

D. deliver /dɪˈlɪv.ər/