Suppose an economist advises a state's governor to raise the tax on cigarettes. The governor does not implement the policy because it would not be popular with voters. Which of the following statements best describe the scenario?
a. This is an uncommon occurrence. More often than not, policymakers follow the advise of economists
b. This is a common occurrence. The policymaker knows the best policy but chooses not to institute it for other reasons
c. This would never happen because policymakers always follow economists' advice
d. This is a common occurrence. Policymakers typically disregard economists' advice since they don't believe it's useful