Let \( O P . O Q=1 \) and let \( O, P \) and \( Q \) be three collinear points. If \( O \) and \...

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Let \( O P . O Q=1 \) and let \( O, P \) and \( Q \) be three collinear
points. If \( O \) and \( Q \) represent the complex numbers of origin and \( z \) respectively, then \( P \) represents
(A) \( \frac{1}{z} \)
(B) \( \bar{z} \)
(C) \( \frac{1}{\bar{z}} \)
(D) \( -z \)
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