A company that makes sweaters uses commission-based selling. Each sales employee gets paid a 10% commission after they reach the required quota, based on sweater sales for the month. The in sweater sales per employee. The company has five sales employees. During January, two of the employees reached the quota, one employee sold $500 in sweater sales, and two employees sold $400 in sweater sales each. Determine the company's total commission expense for January: Select one: a. $55 b. $100 c. $40 d. $60