Please choose the correct ending to complete the given sentence: Finance and Business: [header] How to make a crate divider [title] Choose a crate suitable for your dog. [step] To ensure that you're getting the right size, pick out a crate with your puppy's specific breed in mind. The idea is to start off with a crate large enough for your dog to grow into.

Ending1: The crate needs to be spacious enough for your dog to roam freely, and it needs to also be at least small enough for your dog to climb in and out of. Your puppy needs around 72 hours of playtime per month, or 30 hours per week. Ending2: As they get bigger, you'll gradually move the divider to increase the size of their sleeping area. [substeps] If you own a labrador puppy, for example, you'll want to get a crate that can accommodate a full-grown lab. Ending3: [substeps] The size of the crate will depend on the size of your dog. You want a crate with three to four feet of clearance, between the floor and the sides. Ending4: Most crates should be roughly twice as big as a crate and have the door slightly ajar. [substeps] When choosing a crate, choose one that comes with a top that's easy to clean, will hold in bedding, and will support your dog's weight.

Answer format: ending1/ending2/ending3/ending4