Which of the Following Is a Feature of Lactation

Which of the following is a feature of lactation?

A) Breast milk protein content may be enhanced by moderate exercise.
B) The volume of breast milk may be increased by drinking plenty of fluid.
C) The iron content of breast milk may be increased by taking iron supplements.
D) Breast milk quantity but not quality is most affected by nutritional inadequacies.
E) Breastfeeding is an automatic physiological response.