You wish to use a lens to project the display of your phone onto a screen. Which arrangements of distances between the phone and the lens, and focal lengths of the lens could possibly work?

A. phone is 10 cm from a lens with a focal length of -20 cm
B. phone is 30 cm from a lens with a focal length of -20 cm
C. phone is 30 cm from a lens with a focal length of 20 cm
D. phone is 10 cm from a lens with a focal length of 20 cm