What is one key advantage of using electron microscopes?

One key advantage of using electron microscopes is that they allow for detailed views of small structures. Unlike light microscopes, which use visible light to magnify specimens, electron microscopes utilize a beam of electrons. This method significantly enhances the resolution because electrons have much shorter wavelengths than visible light. As a result, electron microscopes can resolve fine details down to the nanometer scale, making them ideal for studying intricate cellular structures, organelles, and even macromolecules. This level of detail is critical in many fields, including microbiology and materials science, where understanding the architecture of small entities can lead to important discoveries and insights.

In contrast, the other options refer to aspects that do not align with the primary advantages of electron microscopy. For instance, they do not provide a clearer image of larger specimens, and they tend to be more expensive and complex to operate than light microscopes.