Florida Citrus Mutual, an agricultural cooperative association for citrus growers in Florida, needs to predict what will happen to the price and output of Florida oranges under the conditions below. What are your predictions? For each part, sketch a graph showing the appropriate demand and supply analysis.

a. A major freeze destroys a large number of the orange tree in Florida.

b. The scientist in the agricultural extension service of the University of Florida discover a way to double the number of oranges produced by orange tree.

c. The American Medical Association announces that drinking orange juice can reduce the risk of heart attack.

d. The price of Florida grapefruit falls.