Why Are Satellite DNAs Separated from the Bulk of the Genome

Why are satellite DNAs separated from the bulk of the genome during density gradient centrifugation?

A) Their base composition is similar to that of the bulk of the genome.
B) Their base composition is significantly different from that of the bulk of the genome.
C) Satellite DNAs have higher molecular weights.
D) Satellites have a higher negative charge than the bulk of the genome.
E) Satellites have a higher positive charge than the bulk of the genome.