The Mother of a Young Child Tells the Nurse That

The mother of a young child tells the nurse that when she was breastfeeding her baby,he never had any colds or infections but now that he is weaned,he seems to be sick all of the time.What should the nurse explain to the mother?

A) "The breast milk provided passive immunity to the baby that he no longer is receiving."
B) "The child should be immunized to prevent these common illnesses."
C) "Some children are just prone to getting more infections than others."
D) "Most babies won't get sick until they are past the age of 12 months."