Find the area of the region bounded by the ellipse $\frac{\Large x^2}{\Large 16} + \frac{\Large y^2}{\Large 9} = 1$

Question

$\begin{array}{1 1} 12 \pi\;sq.units \\ 16 \pi \;sq.units \\ 8 \pi \;sq.units \\ 4 \pi \;sq.units \end{array} $