Final answer:
The Transmission Electron Microscope is the best choice for viewing constituents within a cell due to its high resolution and magnification capabilities.
Step-by-step explanation:
The best microscope to use for viewing constituents within a cell would be a Transmission Electron Microscope (TEM). TEM provides the highest resolution and magnification among the microscope options given, making it the ideal choice for observing the intricate structures within a cell. It achieves its capabilities through the use of a beam of electrons, instead of light, to view samples. Light microscopes and Dark-field microscopes lack the magnification required to thoroughly examine cellular components, while Scanning Electron Microscopes offer high-resolution images of surface features, but do not allow for visualization of interior structures of cells as TEM does.
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