Final answer:
The best response to a customer not interested in vehicle accessories is to provide additional options. This respects their initial choice and still informs them of other available offerings without pressuring them into a discount that could affect the company's profitability.
Step-by-step explanation:
When a customer expresses disinterest in accessorizing their vehicle, the best response is often to provide additional options, which corresponds to choice D. This approach respects the customer's initial decision while simultaneously offering them further information that might align more closely with their needs or desires. Comparing choice D to choice B, offering a discount on accessories, may not be as effective. The profitability of discounts can be unclear without understanding the company's cost structure or sales volume, which in this case, pertains to Toyota. Furthermore, pushing a discount could come off as pressuring the customer, rather than helping them make an informed decision.