Smith Company reported pretax book income of $407,000. Included in the computation were favorable temporary differences of $51,400, unfavorable temporary differences of $20,700, and favorable permanent differences of $40,700. Smith's deferred income tax expense or benefit would be: Multiple Choice Net deferred tax expense of $6,447. Net deferred tax benefit of $6,447. O o oo Net deferred tax expense of $15,141. Net deferred tax benefit of $15,141