Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to take a baby on a hike [title] Set yourself up with the right equipment when hiking with a baby. [step] For a baby aged between 1 and 5 months old, select a front carrier for his head and neck support. When your child is able to sit independently, choose a secure back carrier.

Ending1: When the child can stand to walk, the carrier should also be loose-fitting. The back carrier should stretch out about 2 feet (30 cm) from the child and it should have the right width so the child can squat rather than sit on it. Ending2: You can use a sleep splint to lower the child's head until he is comfortable. Make sure that the bottom of the carrier is stable enough for him to sit. Ending3: A support unit for the head and neck support is ideal, which will keep your child securely supported while you hike. [substeps] The reverse of this: if you are climbing with your baby, get a battery powered portable top carrier. Ending4: A hiking stroller is another option, but it may be restrictive with some terrain. Test your equipment before using it on the hike to be sure you and your child are both comfortable.

Answer format: ending1/ending2/ending3/ending4