ICMP and IGMP belong to which layer of the OSI model?

The network layer contains the Internet Protocol (IP), the Internet Control Message Protocol (ICMP), and the Internet Group Management Protocol (IGMP)

The following answers are incorrect:

Datagram Layer. Is incorrect as a distractor as there is no Datagram Layer.

Transport Layer. Is incorrect because it is used to data between applications and uses the TCP and UDP protocols.

Data Link Layer. Is incorrect because this layer deals with addressing hardware.