In a water pumping system, the pump takes in $2.0\,\text{kW}$ of electrical power while lifting water. The system raises $16\,\text{kg}$ of water each second by a vertical distance of $7.0\,\text{m}$. What is the efficiency of the pumping system?
- A$1.8\%$
- B$5.6\%$
- C$22\%$
- D$55\%$