If x^1/6 = y^2/3, then relation between x and y is.

Answer: Option B

$$\begin{array}{rl}& {\text{x}}^{\frac{1}{6}}={\text{y}}^{\frac{2}{3}}\\ & \therefore \text{LCM of }\left(3\&6\right)=6\\ & \Rightarrow {\text{x}}^{\frac{1}{6}\times 6}={\text{y}}^{\frac{2}{3}\times 6}\\ & \Rightarrow \boxed{\text{x}={\text{y}}^4}\end{array}$$