Contribution margin income statement data for the most recent year follow: Cat Food Sales revenue Variable expenses Contribution margin Fixed expenses Operating income (loss) Total Dog Food $385,000 $300,000 $85,000 $205,000 $165,000 $40,000 $180,000 $135,000 $45,000 $102,000 $50,000 $52,000 $78,000 $85,000 $(7,000) Assuming the Dog food line is discontinued, and all fixed costs will go away, how will operating income be affected? A. Increase $7,000 B. Decrease $45,000 C. Increase $45,000 D. Decrease $7,000 ...