Ted files his taxes as a single person in the United States. Assume that in the United States we have a progressive tax structure. On his last return he showed taxable income of $32,000 and paid $5,396 in income taxes. Based only on this information in this problem, his

a. marginal tax rate was 30% and his average tax rate was 16.9%.

b. marginal tax rate was 10% and his average tax rate was 16.9%

c. average tax rate was 10% and his marginal tax rate was 16.9%.

d. average tax rate was 30% and his marginal tax rate was 16.9%.

e. marginal tax rate was 15% and his average tax rate was 16.9%.