Question

Some portion of the milk produced in the United States comes from cows treated with genetically manipulated hormones that increase a cow's milk production. This increased production helps farmers make a better return on their investment in each cow. What aspect of this biotechnology must be fully understood before the benefits can be justified?

Its effect on the cost of production

Its effect on other animals in the dairy

Its effect on the offspring of the cow

Its effect on consumers of the milk