Which of the following is NOT a benefit of breastfeeding for the infant?
A) The protein in breast milk is easy for the infant to digest.
B) The antibodies and immune factors found in breast milk help to protect the infant from infection.
C) The DHA found in breast milk is essential to the development of the infant's nervous system and retina.
D) The iron found in breast milk is sufficient to meet the infant's needs throughout the first year of life.