Read the information in the box. Alex is helping Casey set up for a garage sale. Together, they are listening to a box of old CDs to make sure that the CDs work before they put price tags on them. Alex enjoys a lot of the CDs that Casey plans to sell. If Casey sells Alex the box of used CDs in a voluntary exchange, then A both Casey and Alex will benefit from the exchange. B Casey will benefit from the exchange, but Alex will lose. C Alex will benefit from the exchange, but Casey will lose. D the economic well-being of both will remain the same