Final answer:
The decryption of UNESCO is the United Nations Educational, Scientific and Cultural Organization, a specialized agency of the United Nations which focuses on intellectual cooperation and development.
Step-by-step explanation:
The correct option for the decryption of the abbreviation UNESCO among the choices given is b) United Nations Educational, Scientific and Cultural Organization. It is one of the agencies of the United Nations purposefully created to contribute to the building of peace, the eradication of poverty, sustainable development, and intercultural dialogue through education, the sciences, culture, communication, and information. Unlike the North Atlantic Treaty Organization (option c) which is a US-led military alliance, or the International Organization of Turk Culture (option d), UNESCO's specific mandate is embedded in intellectual cooperation and development.
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