CEMC Pascal, 2009

Geometry Difficulty 2.0 Junior Find the answer Canada

In the diagram, $PQ$ and $RS$ are diameters of a circle with radius 4. If $PQ$ and $RS$ are perpendicular, what is the area of the shaded region?

(A) $16 + 4\pi$ (B) $8 + 8\pi$ (C) $8 + 4\pi$ (D) $16 + 16\pi$ (E) $16 + 8\pi$

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