Cell Structure and Compartments - Medical Science

Q1:

The simplest way to differentiate a prokaryotic cell from a eukaryotic one is to

A look for a plasma membrane

B see if a nucleus is present

C check for the presence of DNA

D determine if the cell is an entire organism or not

ANS:B - see if a nucleus is present

But nucleus is not the perfect answer.

What do you think about option D?