4. Grand Corporation reported pretax book income of $600,000. Tax depreciation exceeded book depreciation by $400,000. In addition, the company received $300,000 of tax-exempt municipal bond interest. The company's prior-year tax return showed taxable income of $50,000. Compute the company's current and deferred income tax expense or benefit.Assume CARES Act applies.(Leave no answer blank. Enter N/A or zero.)

Current income tax______________?____________?

Deferred income tax______________?____________?