Factor by Grouping $$2 a ^ { 2 } - 3 b c - 2 a b + 3 a c$$

Factor by grouping. $$2 a ^ { 2 } - 3 b c - 2 a b + 3 a c$$

A) $2 a + 3 c ( a - b )$
B) $( 2 a - 3 c ) ( a + b )$
C) $( 2 a + 3 c ) ( a - b )$
D) $( a + c ) ( a - b )$
E) $2 a ^ { 2 } - 2 a b + 3 c ( a - b )$