Find the Exact Value of the Expression $\sec \left( \tan ^ { - 1 } \frac { \sqrt { 3 } } { 3 } \right)$

Multiple Choice

Find the exact value of the expression.
- $\sec \left( \tan ^ { - 1 } \frac { \sqrt { 3 } } { 3 } \right)$

A) 2
B) $\frac { 2 \sqrt { 3 } } { 3 }$
C) $\frac { 1 } { 2 }$
D) $\sqrt { 3 }$