Contrast the location of DNA between eu- and prokaryotic microorganisms.

a) DNA is located in the nucleus of eukaryotic organisms, while it is freely floating in the cytoplasm of prokaryotic organisms.
b) DNA is located in the cytoplasm of both eukaryotic and prokaryotic organisms.
c) DNA is located in the nucleus of both eukaryotic and prokaryotic organisms.
d) DNA is located in the nucleus of prokaryotic organisms, while it is freely floating in the cytoplasm of eukaryotic organisms.