Bacteria and protists are primarily unicellular organisms. How do bacteria
and unicellular protists differ?
Options:

A) Protists have a single chromosome in a nuclear region, but no nuclear
membrane.
B) Bacteria lack a definite nucleus and have no nuclear membrane.
C) Protists lack organized intracellular structures like mitochondria and
chloroplasts.
D) Bacteria have a complex intracellular structures like ribosomes.