How does port forwarding assist a user?

Port forwarding assists a user primarily by allowing remote access to specific devices on a private network. This technique works by configuring a router to direct incoming traffic on certain ports to specific devices within the network. For example, if a user wants to access a home security camera or a gaming console from outside their home network, they can set up port forwarding to ensure that requests sent to the router's public IP address on the designated port are forwarded to the correct internal device.

This capability is essential for various applications, such as remote desktop access, online gaming, and running web servers from a home network, where users need to reach devices that aren't directly accessible from outside. While port forwarding does involve some considerations regarding security and ease of network management, its primary function is to enable access to internal network devices from an external source, making option B the most relevant choice.