Answer:
c.a decrease in quantity demanded of poultry and an increase in the demand for fish.
Step-by-step explanation:
The law of demand states that the higher the price , the lower the quantity demanded and the lower the price, the higher the quantity demanded.
Following from the law of demand, if the price of poultry increases, the quantity of poultry demanded would fall.
Because fish and poultry are subsituites goods, if the price of poultry increases, the demand for fish would increase.
I hope my answer helps you.