Please Help with an Economics Question

Question

Question: Which of the following statements about marginal and average tax rates is correct?

a) Marginal tax rates are a better measure of taxpayer sacrafice.

b) Average tax rates are a better measure of tax effects on incentives

c) Marginal tax rates are a better measure of tax effects on incentives.

I'm thinking it's either A or C. but am not sure... please help. Thank you.

Answer 1

c) Marginal tax rates are a better measure of tax effects on incentives.