List all the permutations of five objects x, y, z, s, and t taken two at a time without repetition. What is 5P2? List all the permutations of five objects x, y, z, s, and t taken two at a time without repetition. Choose the correct answer below. OA. x, y, z, s, t OB. xx, xy, xz, xs, xt, yy, yz, ys, yt, zz, zs, zt, ss, st, tt OC. xy, xz, xs, xt, yz, ys, yt, zs, zt, st OD. xy, xz, xs, xt, yx, yz, ys, yt, zx, zy, zs, zt, sx, sy, sz, st, tx, ty, tz, ts What is 5P2? (Simplify your answer.)