Western Corporation generated a temporary book-tax difference before 2019 when it accelerated its cost recovery deductions by $300,000 over GAAP amounts. Its deferred tax liability account increased by $105,000 ($300,000 35% Federal rate). When the new tax law reduced the applicable Federal corporate income tax rate to 21%: a. Western decreased book income by $42,000. b. Western adjusted the balance in the deferred liability account to $63,000. c. Western increased book income by $21,000. d. No adjustment was needed to the deferred tax liability account. e. Income tax expense was increased by $63,000