Most Chloroplast Genomes Consist of a Single Circular DNA Molecule

Most chloroplast genomes consist of a single circular DNA molecule not complexed with histone proteins. Although there is considerable size variation among species, the cpDNAs found in most vascular plants are about 150,000 bp. Genes are scattered in the circular chloroplast genome, and many contain introns. Most cpDNAs contain a large inverted repeat.
-In its organization, chloroplast DNA is most similar to

A) eubacteria.
B) archaea.
C) nuclear DNA of plants.
D) nuclear DNA of primitive eukaryotes.