Consider the following events: Scientists reveal that consumption of oranges decrease the risk of diabetes. Follow the three analyzing steps and explain how this event affect the equilibrium price and quantity of oranges sold. Decide whether the event shifts the supply or demand curve (or both). Decide in which direction the curve shifts. Use the supply-and-demand diagram to see how the shift changes the equilibrium price and quantity. (图自己画在纸上,把分析写上来就好)