Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to tell how old a kitten is [title] Look for an umbilical cord stump. [step] If you find one, you can be sure you're dealing with a newborn kitten. [substeps] The mother usually bites the cord until it breaks.

Ending1: However, she can grow sizes and grow lengths. A kitten in the united states can vary greatly in size. Ending2: The remaining " stump " will be a small piece of tissue hanging off the kitten's belly. Cats' umbilical cord stumps usually fall off in the first 3 days of life. Ending3: As it ages, the umbilical cord shortens. The umbilical cord stump is often located located in the mother's den or a large space the kitten likes to sleep in. Ending4: The cord stump usually comes with a small knot and a hook to hold it in place. [title] Check the ring for a long cord.

Answer format: ending1/ending2/ending3/ending4