Final answer:
Trace Route is the tool that shows the packet route from one host to another and helps in debugging network problems. It provides the path and transit delays of packets, which can be crucial in identifying the location of a network issue.
Step-by-step explanation:
A handy tool that can show you the route that packets take from one host to another and can also be used to help debug network problems is Trace Route (option B). Trace Route is a network diagnostic tool that displays the path or route through the internet from the host system to a target destination system and measures transit delays of packets along this path. This can be extremely useful when trying to pinpoint where a network issue is occurring.
For example, if a user is having trouble connecting to a website, they can run Trace Route to see each hop the packets take to reach the web server. If the packets stop at a certain point, this indicates where the problem might be. This is a very practical method for identifying network congestion, misconfigured routes, or other issues that could affect data transmission.