Which part of the microscope should you use to carry it?
a. the stage
b. the eyepiece
c. the focus knobs
d. the arm
Is it the arm?
Your answers aren't complete. A microscope should be carried by the arm with the other hand under the base.
http://www.google.com/search?q=microscope+carry&tbm=isch&tbo=u&source=univ&sa=X&ei=-wM2UpGTNI61qAHBs4H4DA&ved=0CEAQsAQ&biw=711&bih=453&dpr=1