In Cystic Fibrosis (CF)frequent Exercises Are Needed to Clear the Lungs.Many

In cystic fibrosis (CF) frequent exercises are needed to clear the lungs.Many children with CF resist this because it can be time consuming,laborious,and distressing.Which of the following techniques might the pediatric psychologist be most likely to recommend to parents?

A) providing a desired item or experience after participating in the lung-clearing exercises
B) providing a desired item or experience before participating in the lung-clearing exercises
C) removing a desired item or experience if the child does not participate in the lung-clearing exercises
D) providing an undesirable experience if the child does not participate in the lung-clearing exercises