All About Farm Animals has two product lines: Horse feed and Cow feed. Contribution margin income statement data for the most recent year follow: Sales revenue Variable expenses Contribution margin Fixed expenses Operating income (loss) Total Horse Feed $405,000 $320,000 $65,000 $25,000 $340,000 $295,000 $99,000 $47,000 $241,000 $248,000 Cow Feed $85,000 $40,000 $45,000 $52,000 $17,000) Assuming total fixed costs remain unchanged, how would discontinuing the Cow food line affect operating income? Decrease in total operating income of $437,000 Increase in total operating income of $196,000 Decrease in total operating income of $45,000 Increase in total operating income of $7,000