The correct option is B dipole moment, polarizability
Induced dipole moment depends upon the dipole moment of the pannanent dipole and the polarizability of the electrically neutral molecule. As the size of molecule/atom increase, the influence of permanent electrical dipole on it also increases, resulting in the increase in magnitude of these forces. The existence of these forces was studied by Debye (1920) and this effect was termed as induction effect.
Hence option A is correct.