The equation below defines a quantity $y$ that must be found. $y = \dfrac{p x}{q^2}$ The percentage uncertainties for $p$, $x$ and $q$ are given below. $p$: $6\%$ $x$: $2\%$ $q$: $4\%$ What is the percentage uncertainty in $y$?
- A$0.5\%$
- B$0.75\%$
- C$12\%$
- D$16\%$