Y, K and $\eta$  respectively the young’s, Bulk and rigidity modulus of a body, if  $\eta =\frac{K}{2}$ , the correct relation is

Given

$\begin{array}{l}\eta =\frac{K}{2}\\ wehave\frac{9}{Y}=\frac{1}{K}+\frac{3}{\eta }\\ =\frac{1}{K}+\frac{6}{K}=\frac{7}{K}\\ Y=\frac{9K}{7}\end{array}$