Which Intrusion Detection System is the best applicable for large environments where critical assets on the network need extra security and is ideal for observing sensitive network segments?

Which Intrusion Detection System is the best applicable for large environments where critical assets on the network need extra security and is ideal for observing sensitive network segments?
A . Honeypots
B . Firewalls
C . Network-based intrusion detection system (NIDS)
D . Host-based intrusion detection system (HIDS)

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Answer: C