6. Crane Corporation has a deferred tax asset at December 31, 2022 of $ 140000 due to the recognition of potential tax benefits of an operating loss carryforward. The enacted tax rates are as follows: 30% for 20192021; 25% for 2022; and 20% for 2023 and thereafter. Assuming that management expects that only 50% of the related benefits will actually be realized, a valuation account should be established in the amount of:

A) $ 24500

B) $ 21000

C) $ 70000

D) $ 28000