How many times printf() will be executed in the below mentioned program?

main() 
{
      int i;<br><br>       
      for (i = 0; i < 4; i++)      
      fork();
      printf("my pid = %d\n", getpid());
}

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