If a plant assests of a manufacturing company are sold at a gain of $820,000 less related taxes of $250,000, and the gain is not considered unusual or infrequent, the income statement for the period would disclose these effects as:
a) operating income net of applicable taxes, $570,000
b) a gain of $820,000 and an increase in income tax expense of $250,000
c) an extraordinary item net of applicable taxes, $570,000
d) a prior period adjustment net of applicable taxes, $570,000