Suppose \(\rm \mathop v\limits^ \to = 2\hat i + \hat j - \hat k\) and \(\rm \mathop w\limits^ \to = \hat i + 3\hat k\). If \(\rm \mathop u\limits^ \to \) is unit vector, then the maximum value of scalar triple product \(\rm \left[ {\mathop u\limits^ \to \mathop v\limits^ \to \mathop w\limits^ \to } \right]\) is -
1
\(\sqrt{10} + \sqrt{6}\)
2
\(\sqrt{59}\)
3
-1
4
\(\sqrt{6}\)