A manager looking for high and stable performance,starting soon,would be best using a ____ rather than ____ schedule of reinforcement.

A) variable ratio;variable interval
B) variable interval;variable ratio
C) fixed ratio;fixed interval
D) fixed interval;fixed ratio

A fixed ratio schedule involves providing reinforcement after a set number of responses or actions, while a fixed interval schedule provides reinforcement after a set amount of time has passed. These schedules provide consistent and predictable reinforcement, which can lead to high and stable performance. Variable schedules involve providing reinforcement at unpredictable intervals or after unpredictable numbers of responses, which can result in more inconsistent performance from employees. Therefore, the manager looking for high and stable performance would be best using a fixed ratio and fixed interval schedule of reinforcement.