Let `vec(OA)=vecas, vec(OB)=10veca+2vecb and vec(OC)=vecb where O` A and C are non collinear points.

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Let `vec(OA)=vecas, vec(OB)=10veca+2vecb and vec(OC)=vecb where O` A and C are non collinear points. Let p denote the area of the quadrilaterial OABCand q denote the area of the parallelogram with OA and OC as adjacent sides. Then `p/q=` (A) 2 (B) 6 (C) 1 (D) `1/2|veca+vecb+vecc]`

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