Answer:
Everyone should be drinking more milk
Explanation:
"Everyone should be drinking more milk" is the only statement that is an opinion and since opinions are subjective this statement is the subjective statement. The first statement ''Milk contains vitamin A, vitamin D, and calcium'' is a fact so this statement is objective and the other statement ''A 2010 scientific study in Nutrition Journal showed that almost half of American adults have vitamin D deficiencies. '' is based on scientific research so it is objective as well.