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".
Q: [header] How to sue someone for injuring or killing your pet [title] Document the injury to your pet. [step] You need evidence of the injury or death in order to bring a successful lawsuit. If your pet is injured, you will also want to get immediate treatment. <sep> (A) This is because lost play can cause injuries in the eyes and ears. To recollect lost play on your pet, you should take him to a veterinarian and have him examined. (B) Although you may be in shock, you should move quickly and do the following : [substeps] Call the vet or take your pet to the vet. Your pet's health should be your first priority, so get her treatment immediately. (C) This means you should film and record the incident and explain what happened. [substeps] Suppose you took your pet to the vet and she ran away. (D) [substeps] You can get a copy of your local police report from the city or county courthouse. You may also need proof of the relationship between the cat and the person who injured or killed it.
A:
B