Corbel Corporation has two divisions: Division A and Division B. Last month, the company reported a contribution margin of $49,700 for Division A. Division B had a contribution margin ratio of 20% and its sales were $296,000. Net operating income for the company was $33,800 and traceable fixed expenses were $56,100. Corbel Corporation's common fixed expenses were: Multiple Choice $75,100 $108,900 $56,100 $19,000