We Know That Milk Production Played an Important Role in Early

We know that milk production played an important role in early pastoral communities in northern Europe because

A) analyses of their pottery show residues of compounds found only in milk.
B) isotopic analysis of the teeth of people shows they drank milk.
C) the amount of genetic diversity for milk proteins in domesticated cattle indicates that people kept small herds.
D) the amount of genetic diversity in domesticated cattle is greatest in southeastern Europe.