The Distance Between the Object to Be Viewed and the Eyepiece

Multiple Choice

The distance between the object to be viewed and the eyepiece of a compound microscope is 25.0 cm. The focal length of its objective lens is 0.200 cm and the eyepiece has a focal length of 2.60 cm.
What is the magnitude of the total magnification of the microscope when used by the person of
Normal eyesight if it is designed for minimum eyestrain?

A) 477
B) 1070
C) 204
D) 520
E) 772