How is network layer addressing accomplished in the OSI protocol suite?

A.
Internet Protocol address

B.
Media Access Control address

C.
Packet Layer Protocol address

D.
Network Service Access Point address

E.
Authority and Format Identifier address

Explanation:
OSI network-layer addressing is implemented by using two types of hierarchical addresses:
network service access-point addresses and network-entity titles.
A network service-access point (NSAP) is a conceptual point on the boundary between the
network and the transport layers. The NSAP is the location at which OSI network services are
provided to the transport layer. Each transport-layer entity is assigned a single NSAP, which is
individually addressed in an OSI internetwork using NSAP addresses.