Concept:The kilowatt-hour (kWh) is the commercial unit of electrical energy, not of force, potential, or power.
Explanation:Electric force is measured in newton. Kilowatt minute is a unit of energy, not force. So option A is wrong.
Electric potential is measured in volt. Kilowatt seconds is also a unit of energy, not potential. So option B is wrong.
Electric energy is measured in joule (SI unit) and kilowatt-hour (commercial unit). One kilowatt-hour equals 3.6 × 10^6 joule. So option C is correctly matched.
Electric power is measured in watt or kilowatt. Kilohour is not a unit of power. So option D is wrong.
Answer:Option C: Electric energy - Kilowatt hour.