which of the following is equivalent to the product below?√ 9• √5•√2

Given:
The expression
[tex]\sqrt{9}\cdot\sqrt{5}\cdot\sqrt{2}[/tex]Required:
What is the product?
Explanation:
We can write
[tex]\sqrt{ab}=\sqrt{a}\times\sqrt{b}[/tex]So,
[tex]\begin{gathered} \sqrt{9}\cdot\sqrt{5}\cdot\sqrt{2}=\sqrt{9\times5\times2} \\ =\sqrt{90} \\ =\sqrt{10\times9} \\ =\sqrt{10\times3^2} \\ =3\sqrt{10} \end{gathered}[/tex]Answer:
Option B is correct.