In this program, the third argument of the socket() is used for . . . . . . . . potocol.

#include<stdio.h>
#include<sys/types.h>
#include<sys/socket.h>
int main()
{
    int fd_socket;
    if(socket(AF_UNIX,SOCK_STREAM,0) == -1)
        perror("socket");
    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