Biology

All living cells, both prokaryotic and eukaryotic, have a plasma membrane, which regulates what enters and leaves the cell. 

For A: This is incorrect. Only eukaryotic cells have a nucleus, which is membrane-bound. Prokaryotic cells, like bacteria, do not have a nucleus; their genetic material is located in a region called the nucleoid.
For C: This is not true for all cells. Only ce...