Add the arrows that show these relationships, arranging the tables as neces-sary: Primary key Foreign key customerID (customers) customerID (customers) orderID (orders) productID (products) categoryID (categories) customerID (orders) customerID (addresses) orderID (orderItems) productID (orderItems) categoryID (products) To do that, click the “Place a relationship using existing columns” button, click the column for the foreign key, and click the column for the primary key. Note how this identifies the foreign keys in the tables. If you make a mistake, you can right-click on the relationship arrow to delete it, but be sure not to delete the foreign key columns when you’re asked if you want to do that