Fixed Factory and Variable Factory Overhead Cost :

A. True or False / Fixed factory overhead changes in total over the relevant range, based on production.

B.True or False / Fixed factory overhead per unit does not change over the relevant range.

C. True or False / Variable factory overhead does change in total over the relevant range.

D. True or False / Activity based costing is used to allocate overhead cost pools based on single basis such as direct labor hours or machine hours.