C. a. 3. What does the diaphragm control? a. Amount of light b. Amount of specimen Amount of magnification d. None of the above 4. When carrying a microscope, you should hold onto the? Dust shield and objectives b. Stage and stage clip c. Base and arm d. Eyepiece and base 5. When preparing a slide, what must you do to prevent bubbles from becoming trapped under the cover slip? a. Drop the cover slip at 45° angle to prevent bubbles +​