The Assertion (A) and Reason (R) below concern how far the inductive effect reaches along a carbon chain. Read them and choose the option that correctly describes their relationship.

• Assertion (A): The inductive effect of a substituent becomes negligible after about three bonds along a carbon chain.
• Reason (R): The inductive effect is a permanent polarisation transmitted through σ bonds, and the displacement of electron density falls off rapidly with each additional bond from the substituent.