The following costs relate to Muffin Bag Company for a relevant range of up to 10,000 units annually: Variable Costs: Direct materials Direct labor Manufacturing Overhead $1.25 0.75 1.00 1.00 Selling and administrative Fixed Costs: Manufacturing overhead Selling and Administrative $20,000 10,000 Muffin Bag sells each unit for $10.00. Which of the following equations best describes the equation to determine total profit for a sales volume of 8,000 units? Select one: A. Profit = $10X = OB. Profit $10.00X - ($30,000+ $4.00X) C. Profit $10.00X - ($10,000 - $4.00X) D. Profit $30,000+ $4.00X