Which of the following most accurately describes an advantage of a nuclear fusion reactor over a nuclear fission reactor?

W) A failure of control systems shuts down the fusion reactor

X) Fusion based nuclear plants are much less expensive than fission plants

Y) Fusion reactors operate at a lower temperature than fission reactors

Z) The fuel rods in the fusion reactor can be reused
W) A FAILURE OF CONTROL SYSTEMS SHUTS DOWN THE FUSION REACTOR