Answer:
This scenario represents a fixed ratio reinforcement schedule schedule of reinforcement in operant conditioning.
Step-by-step explanation:
A schedule of reinforcement is a protocol that can be followed when delivering reinforces.
A continuous schedule of reinforcement happens when the reinforcement is delivered when a target is met and it can be based on different strategies.
One of the strategies would be the fixed ratio schedule of reinforcement that happens when the reinforcement is delivered after a fixed number of correct responses.
Lucy’s commission is based under this protocol as she gets rewarded after every third sale, having a fixed target number to received her reward.