CEMC Pascal, 2009

Geometry Difficulty 1.0 Junior Find the answer Canada

In the diagram, $\triangle PQR$ is right-angled at $Q$ , $PQ$ is horizontal and $QR$ is vertical. What are the coordinates of $Q$ ?

(A) $(5,2)$ (B) $(5,0)$ (C) $(5,1)$ (D) $(4,1)$ (E) $(1,5)$

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