Some Objects in the Milky Way Galaxy Are Observed to Be

Multiple Choice

Some objects in the Milky Way Galaxy are observed to be emitting two oppositely directed jets of material. These gas jets are believed to be

A) energetic, charged particles ejected along the magnetic axes of a rotating white dwarf.
B) material squirted out along the rotation axis of an accretion disk around a neutron star or black hole in a binary star system.
C) material transferred onto the surface of a white dwarf star in a binary star system, then subsequently blasted into space by runaway thermonuclear fusion reactions.
D) material expelled from the far side of the companion star in a binary system, repelled by magnetic interaction with the pulsar.