If a Rat Is on an FI-30-Second Schedule for Bar

Multiple Choice

If a rat is on an FI-30-second schedule for bar pressing, the rat will be reinforced

A) continuously for 30 seconds and then will receive no more reinforcement.
B) on the average, for every 30 seconds of responding.
C) for a bar press after having waited exactly 30 seconds after the last reinforced response.
D) for a bar press after an interval that averages 30 seconds.