Where must the Dealer Supplemental Price Label remain?

Answer: A — In the window until the vehicle is delivered to the customer

The Dealer Supplemental Price Label must remain in the window until the vehicle is delivered to the customer, as this label is meant to provide transparency and information to potential buyers. Removing it before the vehicle is delivered could lead to confusion or mistrust from customers. Options B, C, and D are incorrect because the label should not be removed from the window once it has been placed there. Keeping it on the sales desk, in the dealership's office, or on the pre-delivery inspection sheet does not serve the same purpose as having it visible in the window for customers to easily see and reference while considering the purchase of the vehicle.