You Wish to Obtain a Magnification of -2 from a Convex

Multiple Choice

You wish to obtain a magnification of -2 from a convex lens of focal length f. The only possible solution is to

A) place a virtual object at a distance 3f/2 from the lens.
B) place a real object at a distance 3f/2 from the lens.
C) place a virtual object at a distance 2f/3 from the lens.
D) place a real object at a distance 2f/3 from the lens.
E) place a virtual object at a distance 5f/3 from the lens.