I would go with A. Wireshark is probably the most widely used packet capture and analysis software in the world.
Wireshark is a pretty handy tool that is used to capture and analyze network traffic. It is used by techies and sys admins to troubleshoot network protocols and services that are normally exposed over networks. It is the best way to see whether protocols like DNS and DHCP are doing the “right” thing. It simply helps you understand network traffic analysis and how communication takes place.
