A Wrench Is Placed At $30 \mathrm {~cm}$ In Front of a Diverging Lens with a Focal Length

Multiple Choice

A wrench is placed at $30 \mathrm {~cm}$ in front of a diverging lens with a focal length of magnitude $10 \mathrm {~cm}$ . What is the magnification of the wrench?

A) $0.67$
B) $- 0.25$
C) $4.0$
D) $- 0.67$
E) $0.25$