A source is placed at a distance of 25 cm from the convex lens of focal length 15 cm. At what distance should a convex mirror of focal length of 12 cm be placed so that the image is formed at the source
A) 13.5 cm from the source toward the right
B) 13.5 cm from the lens toward the right
C) 3.5 cm from the source between the lens and the source
D) none of the above
