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 slow down,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.