A borehole that is $2000\,\text{m}$ deep has oil and water in it, as illustrated. At the base of the borehole, the pressure caused by the liquids is $17.5\,\text{MPa}$. The density of the oil is $830\,\text{kg m}^{-3}$ and the density of the water is $1000\,\text{kg m}^{-3}$. What is the depth $x$ of the oil?
- A$907\,\text{m}$
- B$1000\,\text{m}$
- C$1090\,\text{m}$
- D$1270\,\text{m}$