Answer:
c. C
c. decrease income tax rates
Step-by-step explanation:
Arthur Laffer was a supply‑side economist who was interested in finding the optimal income tax rate that would maximize government tax revenues. This hypothetical tax rate would lead to the economy operating at point E. He is not known for his views on government spending, or demand‑side policies.
Laffer proposed that the U.S. economy in the 1980s was operating at an income tax rate that was too high, but it was not at 100%. Therefore, the answer to the first question is point C. Point C is above the optimal tax rate (point E), but lower than a 100% tax rate (point A).
Given where Laffer thought the economy was operating, he proposed that decreasing tax rates was the solution to increasing tax revenues. Therefore, the answer to the second question is to decrease income tax rates.