can i have answer of these parts please?

Scanning electron microscope (SEM) is another instrument which is important to analyze a biomaterial sample. a) State the general function of SEM. b) Differentiate between scanning electron microscope (SEM) and optical microscope (OM). c) Elaborate two reasons why SEM should be operated in a vacuum condition. d) Identify three output signals of SEM with their correlated and intended data. e) Suggest a procedure to improve the electroconductivity of a polymer sample and to avoid electron charging during SEM visualization. f) Figure 4 shows the morphology of electrospinning fibers which intended for bone scaffold application. Analyze the SEM images by relating to the fiber diameter, fiber shape and fiber porosity. (i (ii Figure 4 SEM images of electrospun fibers g) Suggest a material which is suitable to be electrospun to achieve the morphology, presented in Figure 4. State your reason