LTB, Inc. reported the following income statement information for April: LTB, Inc. Division A Division B Sales $360,000 $160,000 $200,000 Variable costs $182,000 $ 88,000 $ 94,000 Traceable fixed costs $ 82,000 $ 40,000 $ 42,000 Common fixed costs ...... $ 69,000 In May, LTB, Inc. initiated an advertising campaign in Division A costing $14,630. As a result, the sales in Division A increased by 16% in May. The segment margin reported by Division A in May was equal to: $28,890 $36,570 $57,600 $20,149 $42,970 $31,480 $22,490 none of the above choices are correct