The C.O.P. of a heat pump working on a reversed Carnot cycle is

• A. <img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/415-144-1.png">
• B. <img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/415-144-2.png">
• C. <img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/415-144-3.png">
• D. <img src="/_files/images/mechanical-engineering/heat-transfer-refrigeration-and-air-conditioning/415-144-4.png">