Please choose the correct ending to complete the given sentence: Youth: [header] How to know when puppies are ready for new homes [title] Keep the dog for about eight weeks. [step] Early adoption presents many risks for newborn puppies. Perhaps the most important thing to consider when it comes to homing a puppy is that the dog must have the time to go through all of its developmental stages before settling into its forever home.

Ending1: Puppies show a lifelong enjoyment in a home. They love being held and fed and are frequently made available to adopters. Ending2: Without enough time, dogs may exhibit behavioral problems. [substeps] Veterinarians and breeds typically recommend waiting until week 8 before homing a dog. Ending3: [substeps] It cannot have any room for disease or rough transitions. The social demands of traveling the world and attending boarding schools can be too much. Ending4: Start by finding out what your puppy will be comfortable living with while you are away. You will need to make sure it knows that you are available and willing to adopt it.

Answer format: ending1/ending2/ending3/ending4