A material has a property $Q$ that is used to describe how sound waves behave in the material. $Q$ is given by the pressure $P$ of the sound wave divided by the wave speed $v$ and the surface area $A$ of the material through which the wave passes: $Q = \frac{P}{vA}.$ What are the SI base units of $Q$?
- A$\text{kg m}^2\text{ s}^{-3}$
- B$\text{kg m}^{-3}\text{ s}^{-1}$
- C$\text{kg m}^{-4}\text{ s}^{-1}$
- D$\text{kg m}^{-2}\text{ s}^{-2}$