Let \( z_{1} \) and \( z_{2} \) be two non real complex cube roots ...

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Let \( z_{1} \) and \( z_{2} \) be two non real complex cube roots of unity and \( \left|z-z_{1}\right|^{2}+\left|z-z_{2}\right|^{2}=\lambda \) be the equation of a circle with \( z_{1}, z_{2} \) as ends of a diameter then the value of \( \lambda \) is
\( \mathrm{P} \)
(A) 4
(B) 3
(C) 2
(D) \( \sqrt{2} \)
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