BMW has developed two new print ads designed to appeal to women. One ad uses local scenes from around its South Carolina plant and emphasizes the "made in America" aspect. The other ad uses a spokesperson and emphasizes the safety of the car. Which type of ad effectiveness measure should BMW use to test which ad is most effective?
A)split-run testing
B)day-after recall
C)consumer juries
D)physiological measures
E)portfolio tests

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