The correct answer is option C "Specified time period has elapsed"
Explanation:
In operant molding, a fixed-interim timetable is a calendar of support where the main reaction is compensated simply after a predefined measure of time has passed. This timetable causes high measures of reacting close to the finish of the interim however much more slow reacting following the conveyance of the reinforcer.
As you may recall, operant molding depends on either support or discipline to fortify or debilitate a response.1 This procedure of learning includes framing a relationship with conduct and the results of that conduct. Practices that are trailed by alluring results become more grounded and consequently bound to happen again later on. Activities that are trailed by ominous results become less inclined to happen again later on.
Under the operant conditioning, fixed interval schedule is a schedule of reinforcement that rewards a first response when a specific time period has elapsed. As a result of delayed reward, redponses are usually high towards the end the interval.