The below two lines are equivalent to ________.#define C_IO

The below two lines are equivalent to ________.

#define C_IO_HEADER <stdio.h>
    #include C_IO_HEADER

1. #include<stdio.h>
2. #include”C_IO_HEADER”
3. #include”printf”
4. #include<stdlib.h>
5. None of these

Since C_IO_HEADER is defined to be <stdio.h>, the second line becomes #include<stdio.h>, since C_IO_HEADER is replaced with <stdio.h>