White light is used to illuminate two slits in Young's double slit experiment. Separation between the two slits is b and the screen is at a distance D $$(D \gg b)$$ from the plane of slits. The wavelength missing at a point on the screen directly in front of one of the slits is

A

$$\frac{2b^2}{3D}$$

B

$$\frac{2b^2}{D}$$

C

$$\frac{b^2}{3D}$$

D

$$\frac{b^2}{2D}$$