As part of an ERD for a hardware store that rents tools, I created a table called Rentals with the following attributes: Rental ID$,$ Customer ID$,$ Tool ID$,$ Serial No$,$ Rental Date, Return Date. The feedback I recieved stated that the model assumes only one item per rental. I was told to modify the design so that each rental can have more than one item. How can I fix it$?$