Final answer:
The procedure followed when a guest is paying for merchandise and not taking it with them is to have the merchandise kept in a storage area until they request it.
Step-by-step explanation:
When a guest is paying for merchandise and not taking it with them, the procedure typically involves option D) The guest pays for the merchandise and it is kept in a storage area until they request it.
This is commonly seen in situations where the merchandise is large or bulky and the guest may not have a way to transport it immediately.
For example, if a guest purchases a piece of furniture, they may choose to pay for it at the store and then arrange for delivery to their address at a later time.