A major break through in the studies of cells came with

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A major break through in the studies of cells came with the development of electron microscope. This is because

1. the resolving power of the electron microscope is 200 – 350 nm as compared to 0.1 – 0.2 for the light microscope
2. electron beam can pass through thick materials, whereas light microscopy requires thin sections
3. the electron microscope is more powerful than the light microscope as it uses a beam of electrons which has wavelength much longer than that of photons
4. the resolution power of the electron microscope in much higher than that of the light microscope

Correct Option: D

A major break through in cell studies came with the development of EM having great resolution power due to which we can see the ultrastructures of cell organelles.