What is the ultimate fate of an isolated white dwarf?
a) it will cool down and become a cold black dwarf. b) as gravity overwhelms the electron degeneracy pressure, it will explode as a nova. c) as gravity overwhelms the electron degeneracy pressure, it will explode as a supernova. d) as gravity overwhelms the electron degeneracy pressure, it will become a neutron star. e) the electron degeneracy pressure will eventually overwhelm gravity and the white dwarf will slowly evaporate.