A Magnifying Glass Uses a Converging Lens with a Refractive

Multiple Choice

A magnifying glass uses a converging lens with a refractive power of 20 diopters.What is the magnification if the image is to be viewed by a relaxed eye (image at the far point) having a near point of 25 cm and a far point at infinity?

A) 5.0 x
B) 3.0 x
C) 4.0 x
D) 1.0 x
E) 2.0 x