Which One of the Following Statements Concerning Photons Is False

Multiple Choice

Which one of the following statements concerning photons is false?

A) Photons have zero mass.
B) The rest energy of all photons is zero.
C) Photons travel at the speed of light in a vacuum.
D) Photons have been brought to rest by applying a very strong magnetic field to them.
E) The energy of a photon is proportional to its frequency.