What is the output of this program?

#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
 
int main()
{
    struct sockaddr_in addr;
    int fd;
    fd = socket(AF_INET,SOCK_STREAM,0);
    printf("%d\n",fd);
    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