Which
of the following protocols work at the Network layer of the OSI model?

A.
Routing Information Protocol (RIP)

B.
File Transfer Protocol (FTP)

C.
Simple Network Management Protocol (SNMP)

D.
Internet Group Management Protocol (IGMP)

Explanation:
The following protocols of the OSI model work at the Network layer:
Routing Information Protocol (RIP)
Internet Group Management Protocol (IGMP)