The delocalization of electrons due to overlap between p-orbital...

Hyperconjugation is the delocalization of electrons due to the overlap between a $\sigma$ bond (usually C-H or C-C) and an adjacent empty or partially filled p-orbital or a $\pi$-orbital.

Inductive effect involves the polarization of $\sigma$ bonds due to electronegativity differences.

Resonance involves the delocalization of $\pi$ electrons or lone pairs in parallel p-orbitals.

Therefore, the given description corresponds to hyperconjugation.

Answer: hyperconjugation