There was a bumper crop of blueberries last year due to the increased rainfall. This plentiful supply of blueberries caused their price to drop. Bakeries regularly produce and sell blueberry pie. Considering the market for blueberry pies, what factor of supply has been affected, and what was the overall effect on the supply? A. The number of sellers has been affected; supply will increase. B. The new technology has been affected; supply will increase. C. The price of an input has been affected; supply will increase. D. The price of an input has been affected; supply will decrease.