Convert the equation to standard form by completing the square on x and y. Then graph the ellipse and give the location of its foci. 64x2 + 100y2 -512x+ 200y - 5276 = 0 The standard form of the equation is . (Type an equation. Simplify your answer.) Choose the correct graph below. O A. O B. O C. O D. Q X X X X 6 The foci are located at]. (Type ordered pairs. Use a comma to separate answers as needed. Simplify your answers. Type an exact answer, using radicals as needed.)