A biconvex lens of focal length 15 cmis in front of a plane mirror. The distance between the lens and the mirror is 10 cm. A small object is kept at a distance of 30 cm from the lens. The final image is

A

virtual and at a distance of 16 cm from the mirror

B

real and at a distance of 16 cm from the mirror

C

virtual and at a distance of 20 cm from the mirror

D

real and at a distance of 20 cm from the mirror