The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then [CBSE PMT 2004]

• A.            The resistance will be doubled and the specific resistance will be halved
• B.            The resistance will be halved and the specific resistance will remain unchanged
• C.            The resistance will be halved and the specific resistance will be doubled
• D.            The resistance and the specific resistance, will both remain unchanged