Answer:
The answer is: Electron microscope.
Explanation:
To obtain the maximum magnification and the best resolution, the electron microscope must be used, which can reveal details of up to a few nanometers (nm).
When the thin cuts are sectioned, stained and observed with the electron microscope, a delicate membrane, about 5 nm thick, that surrounds the cell is visualized.
The answer is: Electron microscope.
