Oak Corporation holds the following general business credit carryovers: 2015 2016 2017 2018 $15,500 46,500 16,500 50,500 $129,000 Total carryovers Oak's general business credit generated by 2019 activities equals $103,200 and the total credit allowed during the current year is $186,000 (based on tax liability). a. Enter the amount (if any) of each year's carryover utilized in 2019. Amount of Carryover Utilized Year 2015 2016 2017 2018 2019 b. What is the amount of any unused credits carried forward to 2020