Let $g ( r , s , t ) = r e ^ { s / t }$

Multiple Choice

Let $g ( r , s , t ) = r e ^ { s / t }$ . Find $g \left( 9 , \ln 5 , \frac { 1 } { 2 } \right)$ .
Select the correct answer.

A) $\frac { 9 } { 10 }$
B) $\frac { 45 } { 2 }$
C) 225
D) $9 \sqrt { 5 }$