Solve the System of Equations Using Substitution $\left\{ \begin{array} { l } \ln x = 3 \ln y \\ 3 ^ { x } = 27 y \\ \end{array} \right.$

Multiple Choice

Solve the system of equations using substitution.
- $\left\{ \begin{array} { l } \ln x = 3 \ln y \\ 3 ^ { x } = 27 y \\ \end{array} \right.$

A) $x = \sqrt { 3 } , y = 9$
B) $x = 3 \sqrt { 3 } , y = \sqrt { 3 }$
C) $x = \sqrt { 3 } , y = 3 \sqrt { 3 }$
D) $x = 9 , y = \sqrt { 3 }$