What Is the Ultimate Fate of an Isolated Pulsar

Multiple Choice

What is the ultimate fate of an isolated pulsar?

A) It will spin ever faster, becoming a millisecond pulsar.
B) As gravity overwhelms the neutron degeneracy pressure, it will explode as a supernova.
C) As gravity overwhelms the neutron degeneracy pressure, it will become a white dwarf.
D) It will spin ever slower, the magnetic field will weaken, and it will become invisible.
E) The neutron degeneracy pressure will eventually overwhelm gravity and the pulsar will slowly evaporate.