A rotation will interchange the (x,y) coordinates to (y, -x)
So the 3 points are transformed from
D(3,2) to D'(2,-3)
E(4,5) to E'(5,-4)
F(2,3) to F'(3,-2)
Now if you reflect these across the x axis only the y value is affected.
D'(2,-3) to D"(2,3)
E'(5,-4) to E"(5,4)
F'(3,-2) to F"(3,2)
Which is none of your answers. That's one of the reasons it has taken me so long to answer. I'm going to have someone I really trust check what I've done, but I think the question is incorrect. If I am wrong, he has the power to allow me to edit.