Which of the following best describes an amateur radio mesh network?

An amateur radio mesh network is a high-speed data network created by wirelessly linking multiple radio nodes together. Each node can communicate with other nodes, automatically routing data through the most efficient path to reach its destination. To build these networks, radio amateurs often use inexpensive, commercially available Wi-Fi routers. By replacing the factory firmware with specialized amateur radio software (such as AREDN), these routers are modified to operate on amateur radio frequencies adjacent to standard commercial Wi-Fi bands, often at much higher power levels. The other options are incorrect because mesh networks are specifically data-centric, self-forming systems. They are not digital voice modes like DMR, they do not use satellite TV hardware, and they are fundamentally different from internet linking protocols like IRLP used for repeaters.