A medical student is taking a …

A medical student is taking a test and one of the questions he sees is: “Name the three best advantages of mother’s milk.”The student immediately writes, “One: It has all the healthful nutrients needed to sustain a baby.Two: It is inside the mother’s body and therefore protected from germs and infections.”But the student can’t think of the third answer. Finally, he writes, “Three: It comes in such nice containers.”