Brasher Company manufactures and sells a single product that has a positive contribution margin. If the selling price and variable expenses both decrease by 5% and fixed expenses do not change, then what would be the effect on the contribution margin per unit and the contribution margin ratio? Contribution Contribution margin per unit margin ratio A) Decrease Decrease B) Decrease No change C) No change Decrease D) No change No change (Could you explain how did you come up with the answer?)