Sushirama sells rolls for 12$ each. For 20$ per month, you can purchase a discount card which makes the rolls 9$ each. Which inequality below couod be used to find how many rolls of sushi(r) you would need to eat in month to make the discount card a good deal? (A) 12r > 20 + 9r (B) 12r > 20r + 9 (C) 12r < 20 + 9r (D) 12r < 20r + 9