Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to care for a dog with brain cancer [title] Talk to your vet. [step] If you dog has been diagnosed with brain cancer, you should discuss different cancer treatments with him. He may also recommend you see a veterinary oncologist, who is a vet specialist that deals with animal cancer treatments.

Ending1: One of the most common brain cancer treatments is cognitive behavioral therapy (cbt). [substeps] You will likely be diagnosed with cbt upon your first visit to your vet and in approximately two years after it occurs. Ending2: Discuss all the different options with him, since the treatment will vary depending on your specific dog's case. [substeps] Your vet or the vet oncologist can also offer insight into what the treatment will entail, what your dog will go through, and how much it will cost. Ending3: Take your pet to a veterinarian that is trained and licensed. Your vet may have information that can be helpful if your dog is on a medication that causes brain cancer. Ending4: [substeps] Although your dog may have the tumor, his liver is fully functional. He does not have a malignant tumor at this point, but his liver will try to repair it.

Answer format: ending1/ending2/ending3/ending4