The correct options are
A Water
B Proteins
D Minerals
Glands which are specialised for the milk production are called mammary glands. The first secretion from the mammary glands after giving birth to young ones is known as colostrum. It gives milk its yellowish colour and thus in the absence of colostrum it appears opaque white fluid.This milk contains proteins, fats, some minerals, water and vitamin A, D and E.