Consider a Market for Cookies That Is Initially in Equilibrium

Consider a market for cookies that is initially in equilibrium.For a given upward-sloping supply curve,the equilibrium price and equilibrium quantity of cookies is most likely to decline when:

A) the price of milk,a complement,increases.
B) consumer income increases.
C) the number of consumers increases.
D) the price of coffee,a complement,decreases.
E) price of crackers,a substitute,increases.