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 18.0 cm. The focal length of its objective lens is 0.80 cm and the eyepiece has a focal length of 2.3 cm.
The near-point distance of the person using the microscope is 25.0 cm. What is the magnitude of
The total magnification of the microscope if it is designed for minimum eyestrain?

A) 120
B) 480
C) 200
D) 360
E) 184