For the systems working on reversed Carnot cycle, what is the relation between C.O.P. of Refrigerator i.e. (C.O.P.)R and Heat Pump i.e. (C.O.P.)P?

• A. (C.O.P.)R + (C.O.P.)P = 1
• B. (C.O.P.)R = (C.O.P.)P
• C. (C.O.P.)R = (C.O.P.)P − 1
• D. (C.O.P.)R + (C.O.P.)P + 1 = 0