Barton Health Services provided care to a patient worth $1,200. Because the patient was over the age of 65, Barton granted the patient a 20% discount and the customer paid the correct amount in cash. How would Barton record the service transaction?

A. Cash 960
Service Revenue 960
B. Cash 960
Trade Discount 240
Service Revenue 1,200
C. Cash 1,200
Service Revenue 1,200
D. Cash 1,200
Trade Discount 240
Service Revenue 960