0.00060516 is equal to = ?

Answer: Option A

$$\begin{array}{rl}& \text{According to the question,}\\ & \sqrt{0.00060516}\\ & \Rightarrow \sqrt{\frac{60516}{100000000}}\\ & \Rightarrow \frac{246}{10000}\\ & \Rightarrow 0.0246\end{array}$$