Big Company LLC reports the following pretax income(loss) for both book and tax purposes: Year Pretax Income(loss) Tax Rate 2019 (100,000) 21% 2020 52,000 21% 2021 12,000 21% 2022 36,000 21% a. Prepare the journal entries for the income tax expense from 2019-2022 b. Prepare the income tax section for 2020 beginning with the line "Operating income before income taxes