Use Properties of Logarithms to Evaluate the Expression $\mathrm { f } ( \mathrm { x } ) = 14 ^ { \mathrm { x } }$

Multiple Choice

Use properties of logarithms to evaluate the expression.
-If $\mathrm { f } ( \mathrm { x } ) = 14 ^ { \mathrm { x } }$ , find $\mathrm { f } \left[ \log _ { 14 } ( \ln 14 ) \right]$

A) $14 ^ { \ln 14 }$
B) $\log _ { 14 } 14$
C) 0
D) $\ln 14$