How Does the DNA of Prokaryotic Cells Differ from the DNA

How does the DNA of prokaryotic cells differ from the DNA of eukaryotic cells?

A) Prokaryotic DNA is composed of four nucleotides,whereas eukaryotic DNA is composed of five nucleotides.
B) Prokaryotic DNA is bound by an organelle,whereas eukaryotic DNA is free floating in the cytoplasm.
C) Prokaryotic DNA has a linear structure,whereas eukaryotic DNA has a circular,closed-loop structure.
D) Prokaryotic DNA is contained in the cytoplasm,whereas eukaryotic DNA is contained in the nucleus.
E) Prokaryotic DNA is protected by a cell membrane,whereas eukaryotic DNA is protected by a cell wall.