Bio question about microscopes?

Question

The coarse adjustment k**b on a microscope should never be used with the:

A. eyepiece

B. low-power lens

C. medium-power lens

D. high-power lens

Answer 1

high power lense. because that lens is going to be closer to the slide, so you need to use the fine adjustment k**b.  using the coarse adjustment, you are almost certainely going to break the slide and might very well damage the lens as well