You Notice That the Price of Apple Juice at Your

You notice that the price of apple juice at your local grocery store has increased. Which of the following is NOT a possible explanation for the rise in the price of apple juice?

A) A recent scientific study is reported in the press that suggests that apple juice may be contaminated with pesticides.
B) Frosty weather destroys apples, causing the price of apples to increase.
C) Due to the bioengineering of apple trees, the domestic supply of apples increases.
D) As a result of an increase in income, consumers wish to purchase more apple juice at every price level.