Under What Set of Circumstances Will Organelles Move to the Bottom

Multiple Choice

Under what set of circumstances will organelles move to the bottom of a centrifuge tube in a centrifugal field?

A) if the organelle is smaller than ribosomes
B) if the organelle has too much fat content
C) if the organelle is less dense than the surrounding medium
D) if the organelle is more dense than the surrounding medium
E) if the organelle has less fat content than the surrounding medium