Rod AB of radius $$2r$$ is joined with rod BC of radius $$r$$. They are of same material and of same length. The combination carries a current $$I$$. Choose the correct statement.

A

$$V_{AB}=4V_{BC}$$

B

Current per unit area in AB and BC are equal

C

Resistance of AB is greater than that of BC

D

$$V_{BC}=4V_{AB}$$