Computer $1$ on network A$,$ with IP address of $10\mathrm{.}1\mathrm{.}1\mathrm{.}205,$ wants to send a packet to Computer $2,$ with IP address of $172\mathrm{.}16\mathrm{.}1\mathrm{.}57.$ On which network is computer $2?$

Local network

Network $C.$

Network $A$

Network B