Verify that the given differential equation is exact; then solve it$.$

$(9x^3\frac{8y}{x})dx(y^{2}8lnx)dy=0$

Select the correct choice below and, if necessary, fill in the answer box to complete your choice.

A$.$ The equation is exact and an implicit solution in the form $F(x,y)=C$ is $=C,$ where C is an arbitrary constant. $($Do not explicitly include arguments of functions in your answer.$)$

B$.$ The equation is not exact.