T2B14

Which of the following is a “talkgroup”?

1. AA group of amateur radio operators who share email on a specific amateur radio topic
2. BAn identifier used by DMR to organize radio traffic so that those who want to hear the group aren't bothered by other radio traffic
3. CThe members of a net organized for amateur radio operators with a specific common interest
4. DA method of automatically alerting all group members to the frequency where any member is transmitting

Pick an answer to check it.