The Roche Lobe of a Star Is the

Multiple Choice

The Roche lobe of a star is the

A) distance from the star where planets will be destroyed.
B) maximum distance between stars in a binary system.
C) limit to the star's radius before it is officially a red giant.
D) region around that star where its gravity is dominant.
E) maximum distance within which all planets will be tidally locked to the star.