Simplify the Expression $\ln \left( e ^ { - 9 x ^ { 2 } + 19 x } \right)$

Multiple Choice

Simplify the expression. Assume all variables represent positive real numbers. $\ln \left( e ^ { - 9 x ^ { 2 } + 19 x } \right)$

A) $- 9 x ^ { 2 } + 19 x$
B) $19 x \cdot \ln \left( e ^ { - 9 x ^ { 2 } } \right)$
C) $1 ^ { - 9 x ^ { 2 } + 19 x }$
D) $e ^ { - 9 x ^ { 2 } + 19 x }$