Answer: Option B, D and E.
They are usually 10 to 100 microns in diameter.
They are also called archaea.
All of the above are true of eukaryotes.
Explanation:
Eukaryotes are organisms that have nucleus and it is surrounded by nuclear envelope and membrane bound organelles in the cell cytoplasm.
They can either be unicellular or multicellular compared to prokaryotes that are Majorly unicellular.
They are not usually 10 to 100 microns because most eukaryotes are multicellular organisms and they are bigger in sizes visible to the eyes like fish, goat,humans.
Eukaryotes are not usually archaea because archaea is are Majorly prokaryotic organisms that are unicellular and have no nucleus.