A. than B. thumb C. thank D. thinkĐoạn văn1/50Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. thanthumbthankthinkGiải thíchA A. than / ðæn/ B. thumb/ θʌm/ C. thank / θæŋk/ D. think/ θɪŋk/