Given the task definition and input, reply with output. In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to negotiate buying a used car [title] Identify what type of car you want. [step] Part of effective negotiation is knowing the car's true value. In order to find out how much the car is worth, you need to know what car you want. <sep> (A) For example, the amazon dealership might be able to provide a discount on an old car, but you will get a lower rate for a newer vehicle when buying a used car. [substeps] It is very important to identify the condition of your vehicle. (B) You'll need to identify the details that are obviously unique to the car you are buying, particularly if you are looking to use it for a cause. [substeps] Pick a car that provides the best service and reliability. (C) Come up with a limited list of cars that you want to buy. Also come up with a range of years. (D) In some cases, you might find a used car that has already been sold for a discounted price to you. Other cars will ultimately be worth less than the current price.
C