Comprehensive and Detailed Explanation (aligned to N10-009): A broadcast message is delivered to all nodes in a broadcast domain (e.g., ARP requests). A). Unicast is one-to-one. C). Multicast is one-to-many but only to subscribed members. D). Anycast is one-to-one-of-many, sending to the nearest node. References (CompTIA Network+ N10-009): Domain: Networking Concepts - Traffic types: unicast, multicast, broadcast, anycast.