Compared with prokaryotic chromosomes, eukaryotic chromosomes are _.

A) large, linear, less densely packed with protein -coding genes, mainly organized in single -gene units with introns
B) large, mainly organized in single -gene transcription units without introns
C) small, mainly organized in -single gene transcription units with introns
D) large, mainly organized in polygenic transcription units without introns
E) small, mainly organized in polygenic transcription units without introns