In Contrast to Bacteria, Eukaryotic Chromosomes Need Multiple DNA Replication

In contrast to bacteria, eukaryotic chromosomes need multiple DNA replication origins because:

A) eukaryotic chromosomes cannot usually replicate bidirectionally.
B) eukaryotic genomes are not usually circular, like the bacterial chromosome is.
C) the processivity of the eukaryotic DNA polymerase is much less than the bacterial enzyme.
D) their replication rate is much slower, and it would take too long with only a single origin per chromosome.
E) they have a variety of DNA polymerases for different purposes, and need a corresponding variety of replication origins.