Which of the following is a routing protocol?

Which of the following is a routing protocol?

• NTP
• VLAN
• EIGRP
• NTLMv2 

EXPLANATION

Enhanced Interior Gateway Routing Protocol (EIGRP) is an interior gateway protocol suited for many different topologies and media.
In a well designed network, EIGRP scales well and provides extremely quick convergence times with minimal network traffic.

SOURCE

https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/16406-eigrp-toc.html