Two Converging Lenses, the First with Focal Length 25 Cm

Multiple Choice

Two converging lenses, the first with focal length 25 cm and the second with focal length 20 cm, are separated by 30 cm. A 4.0 cm tall object is placed 50 cm in front of the first lens. Where is the image formed by the first lens?

A) 17 cm in front of the first lens
B) 50 cm after the first lens
C) 75 cm after the first lens
D) 27 cm after the second lens
E) 50 cm after the second lens