A Study of Mothers and Infants in Cambridge, England, Demonstrated

A study of mothers and infants in Cambridge, England, demonstrated that:

A) it is best for babies to wait at least 4 hours in between feedings.
B) mothers found it helpful to be advised on how often to feed their infants.
C) babies who were fed every 4 hours cried less than those who were fed more often.
D) mothers who fed their babies more often than advised had babies who cried less than those who followed the advised feeding schedule.