Mct Company's total sales are $180,000. The company's direct material cost is $25,000. Its direct labor cost is $34,000. Its total manufacturing overhead costs consists of $15,000 variable costs and $30,000 fixed costs. Its total selling and administrative expense consists of $6,000 variable costs and 17,000 fixed costs. What is the total contribution margin? Select one: O a. $76,000 O b. $100,000 O c. None of the answers given O d. $106,000 O e. $159,000 O f. $110,000