Simplify the Algebraic Expression $$( 9 x + 4 ) - ( 4 x + 9 )$$

Simplify the algebraic expression. $$( 9 x + 4 ) - ( 4 x + 9 )$$

A) $5 x - 5$
B) $5 x - 13$
C) $13 x - 13$
D) $5 x + 5$
E) $13 x - 5$