Marc, a single taxpayer, earns $60,000 in taxable income and $5,000 in interest from an investment in City of Birmingham bonds. Using the U. S. tax rate schedule for 2021, how much federal tax will he owe? (Round your answer to the nearest whole dollar.) (Use tax rate schedule.)

a. $13,200

b. $8,940

c. $7,496

d. $6,802

e. none of the above