In this program the fifo "my_fifo"

#include<stdio.h>
 
int main()
{
    if (mkfifo("my_fifo",0666) != 0)
        perror("mkfifo");
    return 0;
}

A. countw B. wcount C. wc D. count p E. None of the above

A. dm B. rm C. delete D. erase E. None of the above

A. rdir B. remove C. rd D. rmdir E. None of the above

A. x B. y C. a D. z E. None of the above