The square of the distance of the point of intersection of the lines \( \vec{r} = (\hat{i} + \hat{j} - \hat{k}) + \lambda(a\hat{i} - \hat{j}),\, a \ne 0 \) and \( \vec{r} = (4\hat{i} - \hat{k}) + \mu(2\hat{i} + a\hat{k}) \) from the origin is:
\( 5 \)
\( 10 \)
\( 17 \)
\( 26 \)
