Kilwin's Candies Produced and Sold 600 Boxes of Chocolate Covered

Kilwin's Candies produced and sold 600 boxes of chocolate covered popcorn last month and had total variable costs of $2,100 that reflected the costs of chocolate and popcorn (ingredients) . Each box of popcorn sells for $12.00. If production and sales are expected to increase by 10% next month, which of the following statements is true?

A) Total variable costs are expected to be $1,785
B) Variable cost per unit is expected to be $3.50
C) The incremental cost per unit is costs expected to be $0.35
D) Unit variable costs are expected to be $2.10