In a segmented income statement, which of the following statements is true? a. segment margin is greater than contribution margin. b. common fixed expenses must be allocated to each segment. c. contribution margin is equal to sales less all variable and direct fixed expenses of a segment. d. segment margin is equal to contribution margin less direct and common fixed expenses. e. segment margin is equal to contribution margin less direct fixed expenses.

Caleb construction (cc) incurs supervisor salaries expense in the construction of homes. if cc manufactures 100 homes in a year, fixed supervisor salaries will be $400,000. with the current construction supervisors, cc's productive capacity is 150 homes in a year. however, if cc is contracts to build more than 150 homes per year, it will need to hire additional supervisors, which are hired as full-time rather than temporary employees. cc's productive capacity would then become 200 homes per year, and salaries expense would increase to $470,000. how would cc’s salaries expense be properly classified? fixed variable mixed stepped curvilinear