point) For the function f(z, y) = 6z" + 4zy + 6y" -16 - 16y + 1, find and classify all critica ints. A. (1, 1) , Relative Minimum B. (0, 0), Relative Maximum C. (0, 0), Saddle D. (1, 1), Relative Minimum 1 (0, 0), Relative Maximum E. (1, 1), Saddle