Consider the C code on the right side. A user executes the executable of the code on a Linux shell. Assume it executed successfully. How many processes have been created by executing the C code, including the original process that executes main()?

int main() {
  pid_t pid;
  int i=0;
  for (i=0;i<4;i++) {
    pid = fork();
    if (pid <0) {
      fprintf(stderr,"fork error\n");
      exit(-1);
    }
  }
  return 0;
}