有如下定义 struct person{ char name[9]; int age;}; struct person calss[4]={ "Johu",17, "Paul",19, "Mary",18, "Adam",16,}; 根据以上定义 , 能输出字母 M 的语句是 ________ 。
A.
printf("%c\n", calss [3].name);
B.
printf("%c\n", calss [3].name[1]);
C.
printf("%c\n", calss [2].name[1]);
D.
printf("%c\n", calss [2].name[0]);