What would you advise a mother who has an allergy to protein but still wants to breastfeed?

A: Breast milk does not contain protein unlike cow’s milk, so it is safe to let the mother breastfeed the infant. B: The nurse should inform the mother of the benefits of breastfeeding and should not simply hand over the responsibility to the physician. C: Formula milk contains cow’s milk protein which could trigger an allergy. D: The mother is still using formula milk which could trigger the allergy because of the protein in cow’s milk.