An African elephant has a mass of $6000\,\text{kg}$, and the area of each of its four feet is $0.20\,\text{m}^2$. The gravitational field strength $g$ is $9.8\,\text{N kg}^{-1}$. What is the average pressure exerted by the elephant when it is standing still on all four feet on level ground?
- A$7.5\,\text{kPa}$
- B$30\,\text{kPa}$
- C$74\,\text{kPa}$
- D$290\,\text{kPa}$