Lyons Company consists of two divisions, A and B. Lyons Company reported a contribution margin of $50,000 for Division A, and had a contribution margin ration of 30% in Division B, when sales in Division B were $200,000. Net operating income for the company was $25,000 and traceable fixed expenses were $40,000. Lyons Company's common fixed expenses were:

a. $85,000

b. $70,000

c. $45,000

d. $40,000