Simplify the complex rational expression. 4 ( x + h) 2 h Select the correct choice below and fill in any answer box(es) within your choice. (Simplify your answer. Use integers or fractions for any numbers in the expression. Use a comma to separate answers as needed.) 4 OA. (xth) 112 O B. ( x + h) XI X# h# h X Z and no numbers h must be excluded for h. 4 A 4 4 2 Oc (th X 12 XI and no numbers OD ( x +h) h h no numbers must be must be excluded for x. excluded