Which of the following sentences is an opinion?
A. Since World War II, most of the cheese consumed by the public has been made in factories rather than by hand.
B. Some cheeses are made by adding lemon juice, but most are acidified with bacteria.
C. The art of making cheese originated many thousands of years ago, before recorded history.
D. Parmigiano-Reggiano, or the “King of Cheese,” is the most delicious cheese in the world