Which of the following is NOT an international recognised standard for Information Security?

Which of the following is NOT an international recognised standard for Information Security?

• IEEE 802.11b
• ISO 27001
• ISO 27002
• ITSEC 

EXPLANATION

IEEE 802.11b-1999 or 802.11b, is an amendment to the IEEE 802.11 wireless networking specification. ISO 27001 defines the information security management system (ISMS). ISO/IEC 27002 is a popular, internationally-recognized standard of good practice for information security.
The Information Technology Security Evaluation Criteria (ITSEC) is a structured set of criteria for evaluating computer security within products and systems.

SOURCE

https://en.wikipedia.org/wiki/Cyber_security_standards