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 ",class[1].name); B. printf("%s ",class[2].name); C. printf("%s ",class[3].name); D. printf("%s ",class[0].name);