Lists. Read the problem and answer the following five questions about it. Three friends Derek, Maya, and Amanda decided to have a picnic. They created a grocery list with nine items and divided the list into three parts. Each of them should buy at least two products. Derek and Maya bought the correct products, but Amanda lost her shopping list and bought four products she remembered to be on the grocery list. However, she only bought one of the products she was supposed to buy and three other products, which were not on her list. One of the products in the grocery list was not bought by anyone.
The following code shows what happened with the shopping list and shopping cart of Amanda. You need to find x, y, and z to run it correctly. Hints: First, find what products Amanda bought (check the code for amanda_shopcart). What the first product did she buy?