NDA 2020 Physics question

The cost of energy to operate an industrial refrigerator that consumes 5 kW power working 10 hours per day for 30 days will be (Given that the charge per kW.h of energy = ₹ 4)

• (A)₹ 600
• (B)₹ 6,000Correct
• (C)₹ 1,200
• (D)₹ 1,500