When advertising a vehicle, what must you do if the advertisement only contains lease vehicles?

Answer: C — Disclose the lease terms

The correct answer is C disclose the lease terms. This is because when advertising a lease vehicle, it is important to provide potential customers with all the necessary information so that they can make an informed decision. Disclosing the lease terms would include details about the duration of the lease, the monthly payment amount, and any additional fees or charges. This allows the customer to understand the full cost of leasing the vehicle and not be surprised by any hidden fees. Option A and D do not address the specific information needed for a lease vehicle. Option B is incorrect because listing all leasing companies would not provide relevant information about the specific lease being advertised.