Answer C6

#include <stdio.h>

int main(int argc, char *argv[])
{
  int j ;
  
  for ( j=1; argv[j] != NULL; j++ )
    printf("%1d: %s\n", j, argv[j] );
  	
  return 0;
} 

Here is a run:

What if you want a parameter that includes spaces?

Put the parameter inside matching quotes, single or double: