Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to prevent coat dryness in dogs [title] Notice the symptoms. [step] There are some common symptoms that occur when your dog has dry skin. Your dog will likely spend great amounts of time itching or licking himself.

Ending1: Take note of this and ensure that your dog regularly exfoliates. [substeps] Use a child's toothbrush to blow your dog's fur. Ending2: It can also look like the skin has become irritated due to the chemicals in its cells. To determine what is causing your dog's dryness, it might be helpful to get a small piece of paper that you can use to write the symptoms out on and/or mark the side of your dog's head. Ending3: He may also rub his skin against furniture or the carpet. [substeps] If this behavior happens for long periods of time or every day, your dog likely has dry skin or another skin condition. Ending4: If you suspect your dog has dry skin, make an appointment with your vet and see if you notice any unusual symptoms. Some common symptoms include : [substeps] Scratching under the nails drinking cold water (mild but fast ) [title] Make your dog's bed.

Answer format: ending1/ending2/ending3/ending4