CEMC Pascal, 2002

Geometry Difficulty 1.0 Junior Find the answer Canada

Triangle $ABC$ has vertices $A(1,2)$ , $B(4,0)$ and $C(1,-4)$ . The area of $\triangle ABC$ is

(A) $18$ (B) $12$ (C) $8$ (D) $10$ (E) $9$

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