Calculate the % change on volume is bulk modulus of water is $2\times 10^9N/m^2$ and average depth of sea is 4000m,take $g=10m/s^2$.

Question

$\begin{array}{1 1}(A)\;1\%\\(B)\;2\%\\(C)\;5\%\\(D)\;7\%\end{array}$