Oak Corporation has the following general business credit carryovers: 2017 $5,000 2018 15,000 2019 6,000 2020 19,000 $45,000 Total carryovers The general business credit generated by activities during 2021 equals $36,000 and the total credit allowed during the current year is $60,000 (based on tax liability). a. Enter the amount (if any) of each year's carryover utilized in 2021. Amount of Carryover Utilized Year 2017 2018 2019 TE 2020 2021 b. What is the amount of any unused credits carried forward to 2022