Jacob's Inc. manufactures ladders. Currently they manufacture and sell 100,000 ladders per year. The variable cost per ladder is $8, and total fixed costs are $200,000. Jacob's Inc. has the capacity to increase sales by 20,000 units. Within the relevant range, what can Jacob's Inc. expect to happen to its costs? O A. Variable costs per unit will increase. OB. Fixed costs will remain at $2 per unit. OC. Variable costs will remain at $8 per unit. OD. Fixed costs per unit will increase. The accounting club is selling T-shirts as a fund raiser. The selling price of each shirt is $12. The supplier charges the club $7 per T-shirt. The only fixed cost was $100 for the initial design. What is the accounting club's contribution margin (rounded to the nearest whole percentage)? O A. 30% OB. 50% OC. 58% OD. 42% The accounting club is selling T-shirts as a fund raiser. The selling price of each shirt is $12. The supplier charges the club $7 per T-shirt. The only fixed cost was $100 for the initial design. How many shirts must the accounting club sel simply to break even? (Round any partial units up to the next whole unit.) O A. 17 B. 20 OC. 15 OD. 9