根据下面的定义,能输出 Mary 的语句是【】。 struct person { char name[9]; int age; }; struct person class[5]={"John",17,"Paul",19,"Mary",18,"Adam",16}; A. printf("%s\n",class[1].name); B. printf("%s\n",class[2].name); C. printf("%s\n",class[3].name); D. printf("%s\n",class[0].name);