Match the following terms and definitions. Group of answer choices Measure of activity The factor that best expresses how costs change as volume changes. Attainable standards Standards that can be achieved with very little effort. Loose standards Standards that can be achieved with reasonable effort. Strict standards Standards set at a maximum level of efficiency, representing conditions that are very difficult to attain. Management by exception A philosophy of emphasizing the exception, highlighting only areas that deviate from the plan and that require management's attention