Find each quotient. All final answers must be in simplest form.12r3s5 - 18r2s2 + 3rs / 3rs =O 4r^2s^4 - 6r + 1O 4r^2s^4 + 6rs + 1O 4r^2s^4 - 6rs + 10 4r^2s^4 - 6rs - 1