Campus Zone is a pizza store. The store manager has identified its fixed costs and variable costs. Which of the following is true (within a relevant range)? Fixed costs per unit remains constant as the number of pizzas increases. Variable costs per unit remains constant as the number of pizzas increases. Total fixed cost decreases as the number of pizzas increases Total variable cost remains constant as the number of pizzas increases. Super Manufacturing Inc, makes a product with the following costs per unit: $325 $120 $230 $410