A thin convex lens L of focal length 10 cm and a concave mirror M of focal length 15 cm are placed coaxially 40 cm apart as shown in figure. A beam of light coming parallel to the principal axis is incident on the lens. The final image will be formed at a distance of
(A) 10 cm, left of lens
(B) 10 cm, right of lens
(C) 20 cm, left of lens
(D) 20 cm, right of lens