已知学生记录描述为: struct DATE{ public int year; public int month ; public int day ;} str
A、year=1985; month=10; day=1;
B、birth.year=1985; birth.month=10; birth.day=1;
C、s.year=1985; s.month=10; s.day=1;
D、s.birth.year=1985; s.birth.month=10; s.birth.day=1;