Please choose the correct ending to complete the given sentence: Work World: [header] How to babysit an infant [title] Have a fill in form ready for the parents. [step] It should include parent emergency contact info, what to feed the baby, the baby's allergies, and other stuff you should know in case of an emergency. [title] Make sure the baby is comfortable at all times.

Ending1: [substeps] If the baby starts crying, check his or her diaper. If there is poop, or if the diaper is wet, the diaper needs to be changed. Ending2: [step] Take off their socks, use your fingers to smooth their hair or legs. If they seem hungry, have them say that to you. Ending3: [step] If you are unsure as to what to handle, you will need someone to make sure the baby is comfortable at all times. Some friends have even created an advertisement so babies can be fed and washed by someone that is breastfed. Ending4: [step] They can be irritable, crying, knocked out, or fussy. [title] Don't babysit until the parent is home.

Answer format: ending1/ending2/ending3/ending4