A point like object is placed at a distance of 1 m in front of a convex lens of focal length 0.5 m. A plane mirror is placed at a distance of 2 m behind the lens. The position and nature of the final image formed by the system is :
a. 2.6 m from the mirror, real
b. 1 m from the mirror, virtual
c. 1 m from the mirror, real
d. 2.6 m from the mirror, virtual