Concept:Colostrum is the first milk produced by the mother after birth, rich in protective antibodies.
Explanation:New-born animals have weak immune systems.
Colostrum contains antibodies from the mother's blood.
These antibodies are absorbed by the newborn’s intestine.
They give the newborn temporary or passive immunity.
This protection helps the young animal fight off diseases early in life.
Therefore, colostrum is essential for disease protection, not because it is easily digested or gives permanent immunity.
Answer:B. contains antibodies protecting them against diseases.