Let $y = 3 u e ^ { u }$ And $u = 2 x + 3$

Multiple Choice

Let $y = 3 u e ^ { u }$ and $u = 2 x + 3$ By the Chain Rule, $\frac { d y } { d x }$ is

A) $3 e ^ { 2 x + 3 }$
B) $6 e ^ { 2 x + 3 } ( 2 x + 3 )$
C) $12 e ^ { ( 2 x + 3 ) } ( x + 2 )$
D) $12 e ^ { ( 2 x + 3 ) } ( 2 x + 3 )$
E) $6 e ^ { 2 x + 3 }$