Which of the Following Statements About Using Vegetable Oil in Cakes

Which of the following statements about using vegetable oil in cakes is false?

A) Except for tea breads and commercial cake mixes, vegetable oils are generally not used because they tend to result in a decreased volume and harsh crumb.
B) During creaming, air bubbles are as easily incorporated into oil as they are in butter.
C) Oil coats flour proteins, thus reducing gluten formation and leaving more moisture in the batter.
D) Olive oil contains natural emulsifiers that make cakes more tender and moist.