Write the Expression in Lowest Terms $$\frac { x + 3 } { 9 ( x + 3 ) }$$

Write the expression in lowest terms. If the expression is already in lowest terms, so indicate. Assume that the denominator does not equal zero. $$\frac { x + 3 } { 9 ( x + 3 ) }$$

A) $\frac { x } { 3 }$
B) $\frac { 1 } { 9 }$
C) $\frac { 9 } { x + 3 }$
D) $\frac { x + 3 } { 9 }$
E) in lowest terms