Write the next sentence in this paragraph:

How to protect your cat in summer
Keep your cat's water dish full.
It is important that your cat stays hydrated during the hot summer months. Change its water every day and make sure that it has access to that water at all times.

Available options: (1). Take the bowl that your cat will use to drink out of the water dish daily and replace the entire water bowl every two or three days. Protect from the sun and prevent your cat from getting too wet. (2). Take your cat out in your yard and carefully change the water from the top down every time, either through your kitchen sink or the bottom of your cat's tank. For indoor cats, check the water bowl or scoop before you pour it into the water dish. (3). Do not keep all your cat's water at once as it may mean that your cat will lose more water than it needs while hydrating. Monitor your cat's water intake. (4). If your cat is spending a lot of time outside, you should put a fresh bowl of water outside for it, as well as a bowl inside. A cat spending the day outside needs a guaranteed source of water in order to stay hydrated.
(4).