Write the Expression as an Exponent with Base $e$ $7 ^ { \sin x }$

Multiple Choice

Write the expression as an exponent with base $e$ .
$7 ^ { \sin x }$

A) $e ^ { ( 7 \sin x ) }$
B) $e ^ { ( \sin x \text { (In') } }$
C) $7 e ^ { ( \sin x ) }$
D) $e ^ { ( \sin 7 x ) }$