A nurse is assessing a 3-month-old infant whose parents report starting cow's milk feedings 1 week ago. Which of the following actions should the nurse take?

Instruct the parent to give 5 mcg of vitamin D daily.

Instruct the parent to give the infant water every 3 hr between feedings.

Advise the parent to avoid giving cow's milk to the infant prior to 1 year of age.

Recommend the parent mix the milk with rice cereal for feedings.