If the lines \( r=(\hat{i}-\hat{j}+\hat{k})+\lambda(3 \hat{j}-\hat{k}) \) and \( \boldsymbol{r}=...

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If the lines \( r=(\hat{i}-\hat{j}+\hat{k})+\lambda(3 \hat{j}-\hat{k}) \) and \( \boldsymbol{r}=(\alpha \hat{\boldsymbol{i}}-\hat{\boldsymbol{j}})+\mu(2 \hat{\boldsymbol{i}}-3 \hat{\boldsymbol{k}}) \) are coplanar, then distance of the plane containing these two lines from the point \( (\alpha, 0,0) \) is
(a) \( \frac{2}{9} \)
(b) \( \frac{2}{11} \)
(c) \( \frac{4}{11} \)
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