What Happens to the Surface of a Low-Mass Star After

What happens to the surface of a low-mass star after the helium core and shell fusion stages are completed?

A) The star stabilizes at the size of a red giant star, radiation pressure from below balancing gravity from the core, and slowly cools for the rest of its life.
B) The star is spun off into space to make a spiral structure known as a spiral galaxy.
C) The star is propelled slowly away from the core to form a planetary nebula.
D) The star contracts back onto the core and becomes hot enough to undergo further hydrogen fusion, leading to a very hot and active white dwarf star.