Let $f ( x ) = \tan \left( 5 ^ { x } \right)$

Multiple Choice

Let $f ( x ) = \tan \left( 5 ^ { x } \right)$ Then $f ^ { \prime } ( x )$ is

A) $\tan \left( 5 ^ { x } \ln 5 \right)$
B) $\sec ^ { 2 } \left( 5 ^ { x } \right)$
C) $\sec ^ { 2 } \left( 5 ^ { x } \ln 5 \right)$
D) $\sec ^ { 2 } \left( 5 ^ { x } \right) \ln 5$
E) $5 ^ { x } \sec ^ { 2 } \left( 5 ^ { x } \right) \ln 5$