If the vectors $\hat{i}+2 \hat{j}+x \hat{k}$ and $y \hat{i}+6 \hat{j}+4 \hat{k}$ are collinear,then the values of $x$ and $y$ are respectively,

  • A
    $\frac{4}{3}, 3$
  • B
    $3, 4$
  • C
    $\frac{1}{3}, 1$
  • D
    $4, 3$

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