You will be given a definition of a task first, then some input of the task.
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 treat police stops [title] Know when an officer has the right to stop you. [step] Any type of moving violation (which includes driving an unsafe vehicle) is considered legal grounds for a stop. Additionally, an officer can follow you and wait for you to commit a traffic violation. <sep> (A) [title] Understand when an officer does not have the right to stop you. [step] A police officer cannot pull you over because of your age, race, or sex. (B) [substeps] In many jurisdictions, officers can stop you for such a violation even if you are running at full speed. If an officer says " stop " to stop you, you immediately stop for the duration required by law (for example, if you are nearing a stop sign). (C) In these situations, you can request a fine or arrest warrant from the police. The officer may do everything in his power to stop you from doing so. (D) [substeps] Don't back down slowly or deliberately. If the officer tries to force you to stop, do not comply with their order unless you have a valid reason.
Output:
A