How do homologous chromosomes differ from each other

A) differ in their length
B) differ in the sequence of the genes present on each of the chromosomes
C) differ in the sequence of ORIs.
D) differ in the position of the centromere within each of the chromosomes
E) differ in the exact sequence of the DNA within each of the chromosomes

E) differ in the exact sequence of the DNA within each of the chromosomes

B

or

E (Most likely this 1)