Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to check your cat's ears for possible problems [title] Check for signs of a fight. [step] If your cat gets into a fight, this may lead to ear injuries. Gently look inside your cat's ear to check for any signs of a bite or scratch.

Ending1: There may be a sharp object wrapped in soft tissue that nips at your cat's ear. This might be another sign of a bite. Ending2: [substeps] A licking, biting, and rubbing problem occurs when a cat bites or scratches at a particular ear. This is very painful and damages a cat's ear canal. Ending3: If there is a scratch wound from a claw, it will be long and thin. Bite marks may look like tiny punctures or a scrape. Ending4: Symptoms of a bite include ear pain or stiffness in the ear canal. If your cat is in danger, take it to an animal hospital or animal shelter immediately.

Answer format: ending1/ending2/ending3/ending4