Cow milk's protein is called

Answer: Option C

Cow milk's protein is called Casein.
Casein and whey protein are the major proteins of milk. Casein constitutes approximately 80% (29.5 g/L) of the total protein in bovine milk, and whey protein accounts for about 20% (6.3 g/L) (19-21).
Casein is chiefly phosphate-conjugated and mainly consists of calcium phosphate- micelle complexes.