能将学生正确定义并将变量中的“出生日期”赋值为1984年11月11日的是
A、struct student { int number; char name[20]; char sex; int year; int month; int day; } s; year = 1984; month = 11; day = 11;
B、struct student { int number; char name[20]; char sex; } s; struct { int year; int month; int day; } birth; birth.year = 1984; birth.month = 11; birth.day = 11;
C、struct student { int number; char name[20]; char sex; struct { int year; int month; int day; } birth; } s; s.year = 1984; s.month = 11; s.day = 11;
D、struct student { int number; char name[20]; char sex; struct { int year; int month; int day; } birth; } s; s.birth.year = 1984; s.birth.month = 11; s.birth.day = 11;