The 2021 Form 10-K of Dow Chemical disclosed the following: Deferred tax assets increased by $1,000 million and deferred tax liabilities increased by $350 million. Dow Chemical also reports income tax expense for 2021 of $12 million. Determine the amount Dow Chemical paid in cash for income taxes for 2021. Select one: O a. $12 million O b. $662 million O c. $612 million O d. $638 million