28.下面程序计算一个整数的各位数字之和。在下划线处应填写的语句是SET TALK OFFINPUT”x=”TO xs=0DO WHILE x！=0s=s+MOD（x,10）ENDDO?sSET TALK ON
(A)x=int(x/10)
(B)x=int(x%10)
(C)x=x-int(x/10)
(D)x=x-int(x%10)