Answer:
Illustration A
In carrying the microscope, hold the arm of microscope with your one hand and use the other hand in holding the base of the microscope. This will prevent unwanted accident on carrying the microscope.
Illustration B
Upon viewing the specimen, it is important that you should keep both eyes open in order to prevent eye strain. Your hand will hold the adjustment knob depending on what you want to focus or manipulate the microscope.
Illustration C
You can use the scanner in viewing the slide first so that you have a wider view and you space to locate where you want to focus. You can also move the slide depending on where you want it to.
Illustration D
You can adjust the mirror to improve illumination and the amount of light which will improve focusing the specimen.
