An EC$2$ instance got the IPv$4$ address $172\mathrm{.}16\mathrm{.}79\mathrm{.}200.$

Where is that EC$2$ located?

In subnet $172\mathrm{.}16\mathrm{.}0\mathrm{.}0/20$

In subnet $172\mathrm{.}0\mathrm{.}76\mathrm{.}0/20$

In subnet $172\mathrm{.}17\mathrm{.}79\mathrm{.}0/20$

In subnet $172\mathrm{.}16.\frac{72\mathrm{.}0}{20}$

In subnet $172\mathrm{.}16\mathrm{.}64\mathrm{.}0/20$