Suppose the given supply and demand tables reflect the supply and demand for milk per week. At a price of $1, there is a:Price(per gal.) Quantity demanded (gallons per week) Quantity Supplied (gallons per week)$1 2000 1000$2 1500 1500$3 1000 2000$4 500 2500A. surplus of 500 gallons per week.B. shortage of 1,000 gallons per week.C. surplus of 1,000 gallons per week.D. shortage of 2,500 gallons per week.