carrying it with both hands. reflecting sunlight to the stage. removing the objectives after you are done. adjusting the coarse focus under high power.
I gave my students this multiple choice question: Proper use and care of a microscope includes

Only one answer is correct among these 4 choices:
- carrying it with both hands.
- reflecting sunlight to the stage.
- removing the objectives after you are done.
- adjusting the coarse focus under high power.

Could you tell me which one is correct?

carrying it with both hands.