If the vectors $\vec{a} = \hat{i} - \hat{j} + 2\hat{k}$,$\vec{b} = 2\hat{i} + 4\hat{j} + \hat{k}$,and $\vec{c} = \alpha\hat{i} + \hat{j} + \beta\hat{k}$ are mutually orthogonal,then $(\alpha, \beta) = $

  • A
    $(2, -3)$
  • B
    $(-2, 3)$
  • C
    $(3, -2)$
  • D
    $(-3, 2)$

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