The list shows the symbols for several physical quantities. acceleration of free-fall $g$ atmospheric pressure $P$ density of water $\rho$ depth of water $h$ From the list, which quantities are needed to work out the total pressure at the bottom of a lake?
- A$g$, $h$, $P$ and $\rho$
- B$g$, $h$ and $P$ only
- C$h$, $P$ and $\rho$ only
- D$g$, $h$ and $\rho$ only