Select the protocol type that allows many-to-many communication for EPLRS.

The correct choice for allowing many-to-many communication in EPLRS is multicast. This protocol type enables a single sender to communicate with multiple receivers simultaneously, which is essential in tactical military communications where multiple units need to receive the same data without overwhelming the network.

In a multicast scenario, data packets are sent from a source unit to multiple destination units that have expressed interest in receiving that information, allowing efficient use of bandwidth and minimizing network congestion. This feature is particularly beneficial in operations where numerous units require real-time updates or shared situational awareness without flooding each participant with unnecessary information.

In contrast, unicast is a one-to-one communication method that sends data from one sender to one specific receiver, which does not support many-to-many communication efficiently. Broadcast, while allowing data to be sent to all potential receivers in a network, is not as efficient as multicast when only a subset of devices needs the information. Lastly, point-to-point communication is specifically designed for a direct connection between two devices, further limiting its use in scenarios requiring multiple recipients. Thus, multicast is the ideal protocol for scenarios involving many-to-many communication in EPLRS.