Doing your homework to avoid a bad grade. Punishment Negative reinforcement

The correct answer is: Negative reinforcement.Negative reinforcement is a concept in psychology where a behavior is strengthened by the removal or avoidance of an unpleasant stimulus. In this case, doing homework to avoid a bad grade is an example of negative reinforcement because the unpleasant stimulus (the bad grade) is being removed or avoided by engaging in the desired behavior (doing homework).