A particle with a charge of $-4\mathrm{.}3x{10}^{-6}C$ is $8\mathrm{.}0$ cm from a particle with a charge of $2\mathrm{.}5x{10}^{-8}C.$ What is the potential energy of this two particle system, relative to a point infinitely far away.

$-12\mathrm{.}1$ mJ

$0$ J

$12\mathrm{.}1$ mJ

$-96\mathrm{.}8$ mJ

$96\mathrm{.}8$ mJ