A Teacher Gives Every Student an Envelope with Five or More

A teacher gives every student an envelope with five or more tickets in it. Students lose a ticket every time they engage in one of three inappropriate behaviors. The remaining tickets are placed in a grab bag and mixed up. The teacher draws three tickets and the students whose names appear on the tickets win a reward. What type of intervention is the teacher using?

A) compliance matrix
B) time-delay
C) response cost lottery
D) bingo behavior