During the 1990s Positive Technological Change in the Production of Chicken

Multiple Choice

During the 1990s positive technological change in the production of chicken caused the price of chicken to fall.Holding everything else constant,how would this affect the market for pork (a substitute for chicken) ?

A) The supply of pork would increase and the equilibrium price of pork would decrease.
B) The demand for pork would decrease and the equilibrium price of pork would decrease.
C) The demand for pork would increase because consumers could afford to buy more chicken and pork.
D) The demand for pork would decrease and the equilibrium price of pork would increase.