Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to set up a parrotlet cage [title] Give your bird room to stretch its wings. [step] Parrotlets will like some space, so a cage that's about 18 inches (46 cm) on each side and 20 inches (51 cm) high will work perfectly fine. You can choose a larger cage if you like, but there's no need for it to be huge.

Ending1: [substeps] The bird needs a spacious cage as well as a comfortable place to sleep. This is especially important for older parrotlets with short and whiny backs. Ending2: [title] Choose a cage with narrow bar spacing. [step] Parrotlets can get caught between the bars of cages if they're not properly spaced. Ending3: If your bird needs to go outside, get it to the ground first. If possible, get a safe floor for your bird's cage. Ending4: A cage that's 12 inches (25 cm) high can suffice. [substeps] Make sure any elevated surfaces are safe for your bird.

Answer format: ending1/ending2/ending3/ending4