What is the answer for this problem? the table shows the number of bags earned, based on the number of boxes of cards sold. what does b(20)=3 mean in terms of the problem. a. there are 20 people who earned 3 bags each. b. there are 3 people who sold 20 boxes of cards each. c. someone who sells 20 boxes of cards earns 3 bags. d. someone who sells 3 boxes of cards earns 20 bags.