Rhome Corporation's relevant range of activity is 2,000 units to 6,000 units. When it produces and sells 4,000 units, its average costs per unit areas follows: Direct materials Direct labor Variable manufacturing overhead Fixed manufacturing overhead Fixed selling expense Fixed administrative expense Sales commissions Variable administrative expense Average Cost per Unit $ 5.40 $ 3.55 $ 1.70 $ 3.00 $ 0.60 $ 0.40 $ 1.00 $ 0.40 M5.000 units are sold, the variable cost per unit sold is closest to