An Object Is Placed at a Distance of 20

Multiple Choice

An object is placed at a distance of 20.4 cm from a thin convex lens along its axis.The lens has a focal length of 13.0 cm.What are the values,respectively,of the image distance and magnification?

A) 7.94 cm and 0.569
B) 35.8 cm and - 0.363
C) 7.40 cm and -1.76
D) 35.8 cm and -1.76
E) 7.40 cm and - 0.363