Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to supplement taurine for cats [title] Take your cat to the vet. [step] Because there are no early warning signs of taurine deficiency, you should take your cat for regular vet checkups. The frequency of visits depends on your cat's stage of life and general health.

Ending1: If your cat seems to be taking potassium more frequently, there is a good chance its symptoms are getting worse. [substeps] If you have over 12 cats who live in a single household, it's a good idea to do a routine visit to the vet for every one to four cats. Ending2: [substeps] If your cat is at high risk of taurine deficiency, you may be advised to have it examined by a veterinarian. The vet will likely need to decrease your cat's dosage by a significant amount. Ending3: [substeps] Take your cat to a vet sooner rather than later. If you get the early warning signs, take your cat to the vet at least an hour before the most serious symptoms occur. Ending4: [substeps] Kittens should go every three to four weeks until they've had their full round of vaccinations. Healthy adult cats (age 1 to 7-10, depending on breed) should have a checkup once a year.

Answer format: ending1/ending2/ending3/ending4