What is the area of the shaded region ?

Answer: Option B

Radius of each circle = 2 units
Area of the shaded region :
$$=$$ Area of the rectangle $$-$$ Area of two circles
$$\begin{array}{rl}& =\left[\left(8\times 4\right)-2\times \pi {\left(2\right)}^2\right]\text{sq. units}\\ & =\left(32-8\pi \right)\text{sq. units}\end{array}$$