For the same roadway roughness, area, length and velocity condition the ratio of resistances of a square roadway to that of a rectangular roadway having width and height ratio. 2 : 1 is

A. $$\frac{1}{{\sqrt 3 }}$$

B. $$\frac{{2\sqrt 2 }}{3}$$

C. $$\frac{{3\sqrt 2 }}{2}$$

D. $$\frac{{\sqrt 2 }}{3}$$

Answer: Option B