Isotope(s) of hydrogen which emits low energy $\beta$$-$ particles with t1/2 value > 12 years is/are

Question

Isotope(s) of hydrogen which emits low energy $\beta$^$-$ particles with t_1/2 value > 12 years is/are

Protium

Tritium

Deuterium

Deuterium and Tritium

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