Mark the correct option, for the substance which cannot be emitted by radioactive substance during their decay:
As we learned in the Property of neutrino which has Zero electric charge. It's mass much less than a mass of an electron. Spin is 1/2 particle. Very weak matter making it quite difficult to detect. During the nuclear process, particles emitted are or and the neutrino.
No proton or neutrons are emitted. Hence the correct answer is option B