If $(m-5)+i(n+4)$ is the complex conjugate of $(2m+3)+i(3n-2)$ then $(n ,m )$are

Question

$$\begin{array}{1 1}(1)\bigg(-\frac{1}{2},-8\bigg)&(2)\bigg(-\frac{1}{2},8\bigg)\\(3)\bigg(\frac{1}{2},-8\bigg)&(4)\bigg(\frac{1}{2},8\bigg)\end{array}$$