In the given figure, a battery of emf $$E$$ is connected across a conductor $$PQ$$ of length $$l$$ and different area of cross-sections having radii $$r_1$$ and $$r_2$$ ($$r_2 < r_1$$).

Choose the correct option as one moves from $$P$$ to $$Q$$.

A

Drift velocity of electron increases.

B

Electric field decreases.

C

Electron current decreases.

D

All of these