In a NAT translation table, the source address seen after inside-to-outside translation is the inside global address. The inside local address is the private address assigned to the internal host. The inside global address is the translated address that represents that internal host to the outside network. In the exhibit-based answer set, 172.23.104.4 is the address used as the translated source, so D is correct. This question is easy to miss if NAT terms are treated as labels instead of traffic direction. For outbound traffic, NAT changes the source from the inside local value to the inside global value. For return traffic, NAT reverses the operation and maps the destination back to the inside local host. Cisco CCNA v1.1 IP Services includes NAT concepts and configuration, so candidates must know inside local, inside global, outside local, and outside global. The tested idea is not merely public versus private; it is which translated field is used as the packet source.