Two Converging Lenses,the First with Focal Length 25 Cm and the Second

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 caused by the first lens? Give the most inclusive answer.

A) 50 cm after the first lens
B) 20 cm after the second lens
C) both 50 cm after the first lens and 20 cm after the second lens
D) 50 cm after the second lens
E) 20 cm before the second lens