Answer:
Fixed-interval
Step-by-step explanation:
Fixed-interval schedule: In psychology, the term "fixed-interval schedule" is described as one of the different reinforcement schedules whereby the "first response" is being rewarded after a particularized time has passed. The given type of schedule tends to cause high amounts of acknowledgement nearby the end of the "interval" yet slower acknowledgement rate just after the delivery of a particular reinforcer.
In the question above, the given statement represents a "fixed-interval reinforcement schedule" because the monkey is getting a banana after the fixed time interval.