During its most recent fiscal year, Dover, Inc. had total sales of $3,200,000. Contribution margin amounted to $1,500,000 and pretax income was $400,000. What amount should have been reported as variable costs in the company's contribution margin income statement for the year in question?A. $1,900,000.B. $2,800,000.C. $1,300,000.D. $1,100,000.E. $1,700,000.