Grayson Has Been Diagnosed with Prediabetes,and His Dietician Has Suggested

Grayson has been diagnosed with prediabetes,and his dietician has suggested that he reduce the number of sugary snacks he consumes each day.To reduce his temptation to buy and consume these snacks,Grayson starts shopping at a local farmer's market and subscribes to a healthy-eating blog.Grayson's behavior demonstrates principles of a:

A) stimulus-control intervention.
B) contingency contract.
C) relapse prevention program.
D) self-monitoring program.