Which of the Following Is Correct

Which of the following is correct?

A) Durum wheat is grown primarily in the northern United States,Canada,and southern Europe.
B) Wheat cultivars can be categorized by their growing conditions and their protein content.
C) Bread often supplies more than half of the dietary calories to people throughout the world.
D) Applying heat to the grain makes the glumes easy to remove but also changes the gluten,making it "flat bread."
E) All of the above statements are correct.