code: def _display_choices(self, choices):
          
          print("Choose the number of the correct choice:")
          choice_map = {}
          for i, choice in enumerate(choices):
              i = str(i)
              print('{}) {}'.format(i, format.indent(choice,
                                                     ' ' * (len(i) + 2)).strip()))
              choice = format.normalize(choice)
              choice_map[i] = choice
          return choice_map
docs: Prints a mapping of numbers to choices and returns the
          mapping as a dictionary.