A Person Uses Two Microscopes to View the Same Object

Multiple Choice

A person uses two microscopes to view the same object.Microscope A is twice as long as microscope B and contains lenses with focal lengths that are one-half those of B.If microscope A provides a magnification of m,then what magnification does B provide?

A) m
B) 2m
C) m/2
D) 8m
E) m/8