Question

Ferromagnetism in a material arises​

Answer 1

Option B is correct

hope it helps

Answer 2

Answer:

Spin-orbit interaction of electrons

Explanation:

Origin of magnetism

This dipole moment comes from the more fundamental property of the electron that it has quantum mechanical spin. ... Only atoms with partially filled shells (i.e., unpaired spins) can have a net magnetic moment, so ferromagnetism occurs only in materials with partially filled shells.