Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to diagnose and treat ear infections in cats [title] Notice any ear sensitivity. [step] Ear infections can make your cat's ears sensitive to touch. You may notice this when you pet your cat's head.

Ending1: They may shy away from you or react negatively if you touch their ears. [substeps] You may try to massage near the base of the cat's ear. Ending2: You may see raised spots or cracks in the ear when you touch it. If your cat is always scratching at it at any given time, the vet may order an ear exam. Ending3: This type of sensitivity is called' kelpie tissue'. An ear infection may lead to thick, dead skin cells on the skull, scarring, and blindness. Ending4: [substeps] If your cat seems to have ear pain, makes other noises on occasion, complains to you about infection or pain, or becomes very angry or otherwise displays symptoms, its pet has ear mites. [title] Watch out for increases in urination.

Answer format: ending1/ending2/ending3/ending4