please help! I need a,b, and c, thank you.

In 2000, Ms. Ennis, a head of household, contributed $48,000 in exchange for 480 shares of Seta stock. Seta is a qualified small business. This year, Ms. Ennis sold all 480 shares for $124,000. Her only other investment income was an $7,900 long-term capital gain from the sale of land. Her taxable income before consideration of her two capital transactions is $598,000. Assume the taxable year is 2022 . Use Indlvidual tax rate schedules and Tax rates for capital gains and qualified dividends. Required: a. Compute Ms. Ennis's income tax and Medicare contribution tax for the year. b. How would the computation change if Ms. Ennis acquired the Seta stock in 2011 instead of 2000 ? c. How would the computation change if Ms. Ennis acquired the Seta stock in 2019 instead of 2000 ? Complete this question by entering your answers in the tabs below. Compute Ms. Ennis's income tax and Medicare contribution tax for the year. Note: Round your intermediate calculations and final answers to the nearest whole dollar amount. Head of Household lax rates for capital gains and qualified dividends - The highest income amount in this range for each filing status is referred to as maximum zero rate amount. * The highest income amount in this range for each filing status is referred to as maximum 15-percent amount