Here is a goal: How to change a baby's diaper.

Which way makes more sense to accomplish this goal?

Pick from:
(I) Lay baby on back. Use wipes to clean baby's diaper region. Remove dirty diaper then put on a fresh diaper.
(II) Lay baby on their side. Use wipes to clean baby's diaper region. Remove dirty diaper then put on a fresh diaper.
(I)