Katrina is asked to simplify the expression Negative 3 a minus 4 b minus 2 (5 a minus 7 b). She writes: Negative 3 a minus 4 b minus 2 (5 a minus 7 b) = negative 3 a minus 4 b minus 10 a + 14 b Which property allows her to do this? the associative property the commutative property the distributive property the additive identity property