Which of the Following Statements About the Galactic Magnetic Fields

Multiple Choice

Which of the following statements about the galactic magnetic fields is true?

A) Cosmic rays spiraling magnetic fields produce the radio "glow" of the galactic disk.
B) They are confined mostly to the galactic disk.
C) They trap cosmic rays and interact with them.
D) They are anchored in molecular clouds.
E) All of these are true.