Derek complains of being sick when told to do chores and as a result, his parents complete the household chores for him. What would be an appropriate extinction procedure for Derek's behaviour?
A. Derek's parents ignore him every time he complains of being sick
B. Derek's parents withhold his iPad when he complains of being sick and do not provide it to him until he completes his chores
C. Derek's parents don't let him get out of doing his chores - he has to complete them anyway
D. Derek's parents give him a time out every time he complains of being sick
