Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to save a dying kitten [title] Find a box. [step] If you don't have a pet carrier available, you will need to find a box to put the kitten in. Make sure that the box is big enough for the kitten to comfortably stand up and turn around, but not so big that it will dangerously roll around when you turn corners.

Ending1: [substeps] If possible, use a box that is as high as your kitten can stand. Any taller is better than a too high box. Ending2: [substeps] Secure the top of the box so that the kitten cannot crawl out. Put air holes in the sides of the box so that the kitten has abundant fresh air. Ending3: You'll need to find a box big enough that it won't hurt your cat. [substeps] You can use shoebox boxes or boxes made out of metal. Ending4: You may find one at your local animal shelter, adoption center, pet store, or even a cute house. Let it sit in the box for now.

Answer format: ending1/ending2/ending3/ending4