What is the output of this program?

#include<stdio.h>
#include<unistd.h>
#include<fcntl.h>
 
int main()
{
    long int value;
    int fd;
    fd = open("/home/example/demo.c",O_RDONLY);
    value = fpathconf(fd,_PC_LINK_MAX);
    printf("%ld\n",value);
    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