Assertion (A): Copper rods are generally preferred to iron rods for making lightning conductors.Reason (R) Copper is better conductor of electricity than iron and is not easily oxidised under atmospheric conditions.Consider the above statements and select the correct answer using the code given below:-

• A. Both (A) and (R) are true and (R) is correct explanation of (A)
• B. Both A and R are true but R is not correct explanation of A
• C. A is true, but R is false
• D. A is false but R is true