Concept:Factor the denominator and cancel common factors.Explanation:The given expression is 4u+6v2(u−v)(2u+3v).Factor the denominator:4u+6v=2(2u+3v).Substitute into the fraction:2(2u+3v)2(u−v)(2u+3v).Cancel the common factors 2 and (2u+3v):(u−v).So the simplified form is (u−v).Answer:The correct option is D. (u−v).