13. Peterson Corporation produces a single product. Data from the company's records for last year follow Units in beginning inventory Units produced 70,000 Units sold 60,000 Sales $1,400,000 Manufacturing costs: Variable Fixed Selling and administrative expenses: Variable Fixed $630,000 $315,000 $98,000 $140,000 Under variable costing, net operating income would be: A $217,000 XB. $307,000 C. $352,000 D. $374,500