Answer:
The correct option is: C. Temporal key interchange protocol
Explanation:
IPsec is the abbreviation for Internet Protocol Security, which is a standard secure suite of network protocol that provides data confidentiality, authentication and encryption when transferred across Internet Protocol networks.
The main components of Internet Protocol Security are Encapsulating Security Payload, Authentication Header and Internet Key Exchange.
Therefore, Temporal key interchange protocol is not a component of IPsec.