Brian and Kim have a 12-year-old child, Stan. For 2022, Brian and Kim have taxable income of $52,000, and Stan has interest income of $4,500. No election is made to include Stan's income on Brian and Kim's return.

a. For purposes of the tax on a child's unearned income, calculate Stan's taxable income.

b. Calculate Stan's net unearned income.

c. Calculate Stan's tax for 2022.

d. If there was no kiddie tax and Stan were taxed at his own rate, what would the tax on Stans income be?