Since Many Infants in the United States Are Put to Sleep

Multiple Choice

Since many infants in the United States are put to sleep on their backs as a measure to prevent SIDS, pediatricians are recommending "tummy time to play" because it:

A) aids digestion in the early years.
B) is a more comfortable position for young infants.
C) helps prevent bed sores on the infant's back and bottom.
D) helps the development of locomotion.