Factor the Polynomial Using the Greatest Common Binomial Factor $$9 x ( x - y ) + ( x - y )$$

Multiple Choice

Factor the polynomial using the greatest common binomial factor.
- $$9 x ( x - y ) + ( x - y )$$

A) $9 x ( x - y )$
B) $10 x ( a - y )$
C) $\left( 9 x ^ { 2 } + 9 y \right) + ( x - y )$
D) $( x - y ) ( 9 x + 1 )$