Enterprise makes 2 products, tables and chairs. Tables have a contribution margin per unit of $16.00 and chairs have a contribution margin per unit of $24.00. Enterprise has annual fixed costs of $312,000. Baltimore Enterprise historical sales data indicates that tables and chairs are sold in a 2 to 3 sale mix. How many chairs will be sold at break-even?

a) 9,000 chairs

b) 6,000 chairs

c) 12,600 chairs

d) 15,400 chairs

e) 15,000 chairs