Final answer:
If the daughter is unstable in beta minus decay, it may undergo further decay.
Step-by-step explanation:
In beta minus decay, if the daughter is unstable, it may undergo further decay. This is because the parent nuclide is unstable and lies outside the region of stability. In beta minus decay, a neutron in the nucleus of the parent nuclide converts into a proton and an electron. The electron is emitted from the nucleus as a beta particle (β-). If the resulting daughter nuclide is still unstable, it can undergo further decay through various processes.