What Is the Area Under the Curve Y = $\frac { 1 } { 3 }$

Multiple Choice

What is the area under the curve y = $\frac { 1 } { 3 }$ + 3 $e ^ { 3 x }$ between x = - $\frac { 1 } { 3 }$ and x = $\frac { 1 } { 3 }$ ?

A) $\frac { 1 } { e }$ - e
B) e + $\frac { 1 } { e }$
C) $\frac { 9 \mathrm { e } ^ { 2 } + 2 \mathrm { e } + 9 } { 2 \mathrm { e } }$
D) $\frac { 2 } { 9 }$
E) none of these