Centrifuge Separation, a Method of Separating ²³⁵U from ²³⁸U, Works

Multiple Choice

Centrifuge separation, a method of separating ²³⁵U from ²³⁸U, works because of

A) the difference in the masses of the two nuclei.
B) the fact that both these nuclei are radioactive.
C) the difference in electrical charge of the two nuclei.
D) the difference in size of the two nuclei.
E) the fact that both these nuclei respond to (or feel) the strong nuclear force.