A neutron , an electron, a proton and an alpha particle are moving with the same kinetic energy. Which of the following is correct order of their speeds?
[A] Alpha Particle, Neutron, Proton, Electron
[B] Electron, Proton , Neutron, Alpha Particle
[C] Alpha Particle, Proton, Neutron, Electron
[D] Neutron, Proton, Alpha Particle, Electron
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