5. In 2015, US farmers grew more sweet potatoes than in any year since World War II. In the past few years, several popular diet plans have encouraged people to eat less sugar and eat more fiber and antioxidants. Sweet potatoes are chock full of vitamins and have lots of fiber and antioxidants. In short, as a result of these new diet plans, sweet potatoes have become more popular.

a. Explain what effect, if any, the new diet plans have had on the demand for sweet potatoes.

b. Explain what effect, if any, the new diet plans have had on the supply of sweet potatoes.

c. Explain what effect, if any, the new diet plans have had on the equilibrium price of sweet potatoes.

d. Explain what effect, if any, the new diet plans have had on the equilibrium quantity of sweet potatoes.

In each case, "explain" means state what the effect is and why it occurs