If the straight lines \( 2 x+3 y-1=0, x+2 y-1=0 \) and \( a x+b y-1=0 \) form a triangle with or...

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If the straight lines \( 2 x+3 y-1=0, x+2 y-1=0 \) and \( a x+b y-1=0 \) form a triangle with origin as orthocentre, then \( (a, b) \) is given by
(A) \( (6,4) \)
(B) \( (-8,8) \)
(C) \( (-3,3) \)
(D) \( (0,7) \)
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