my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question Alice is single and self-employed in 2021. Her net business profit on her Schedule C for the year is $168,000. What are her self-employment tax liability and additional Medicare tax liability for 2021? (Round your final answers to the nearest whole dollar amount. Leave no answer blank. Enter zero if applicable.) Answer is complete but not entirely correct. Self-employment tax liability $ 18,065 Additional medicare tax liability $ 0 BU