Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to keep your dog comfortable outdoors [title] Ensure the dog has covered areas. [step] Your dog needs an escape from the sun, especially in the warmer months. Too much direct sun can lead to heatstroke and sunburn.

Ending1: Your pet may be exposed to excessive sunlight that can damage their skin from illnesses they both may have, including illness and injury. Always have dogs inside when they're outside andn't use heating pads or heat aligners, since these can also lead to skin damage. Ending2: In addition, make sure your dog takes shelter during the day, and even indoors when the weather feels warm. [substeps] To keep a dog comfortable in your home, especially if the climate is always hot and sunny, provide your dog with an umbrella or blanket. Ending3: During the winter, your dog will need to get away from snow or ice. Make sure your dog has some shady or covered area where they can get out of the direct path of the elements. Ending4: To prevent such complications, keep a secure space in your house outside and keep your dog inside. You can start by leaving the door slightly ajar for your dog to easily exit the room.

Answer format: ending1/ending2/ending3/ending4