I don't understand the question

Here is the question:

"Add a score method to Game that takes a player argument that'll be either 1 or 2. Increase that player's value in self.current_score by 1. You'll need to adjust the index (i.e. player = 1 means self.current_score[0] needs to increase)."

I don't understand: "takes a player argument that'll be either 1 or 2". I think this means that we need to tell the program that we are dealing either with player number 1 or player number 2, but I am not sure.

I also don't understand: " You'll need to adjust the index (i.e. player = 1 means self.current_score[0] needs to increase)."

I have yet to change the code, so what you see below is the starting point.

class Game:
  def __init__(self):
    self.current_score = [0, 0]