DNA That Is Separate and Apart from the Chromosome DNA

DNA that is separate and apart from the chromosome DNA in a prokaryote is the

A) nucleus, providing a site for DNA regulation of cell functions.
B) nucleoid, often containing a chromosome and regulatory proteins.
C) ribosome, used to make proteins.
D) plasmid, coding for specific proteins used by the cell, or transferred to other cells.
E) endospore, allowing domant survival through long time periods.