[Solved] Technician A says a generic DTC is designated by a P1XXX or P2XXX code. Technician B says manufacturer-specific codes are designated by P0XXX codes. Who is correct? A)A only B)B only C)Both A and B D)Neither A nor B Fixed Costs: Expenses that do not change with changes in the level of production or sales, such as rent, salaries, and insurance. Contribution Margin: The amount by which a product's sales price exceeds its variable costs, used to cover fixed costs and generate profit. Unit Contribution Margin: The difference between the selling price per unit and the variable cost per unit; an important metric in understanding per unit profitability and in break-even analysis. Fixed Costs: Expenses that do not change with the level of production or sales, such as rent, salaries, and insurance premiums.