In this figure the resistance of the coil of galvanometer G is 2 $$\Omega$$. The emf of the cell is 4 V. The ratio of potential difference across C$$_1$$ and C$$_2$$ is

A

1

B

$$\dfrac{4}{5}$$

C

$$\dfrac{5}{4}$$

D

$$\dfrac{3}{4}$$