Final answer:
Prokaryotes lack a nucleus and organelles, making them simple cells.
Step-by-step explanation:
Prokaryotes are single-celled organisms that lack a nucleus and organelles. They have a nucleoid, which is a region where the DNA is located. Prokaryotic cells are relatively simple compared to eukaryotic cells, which have a nucleus and membrane-bound organelles. Therefore, the correct options are:
- b.) don't have a nucleus
- c.) don't have organelles
- d.) simple cells