UNESCO has established Science Co-operation Offices to promote scientific collaboration in different world regions. In which of the following combinations of cities are such offices located?

Introduction / Context:
UNESCO, the United Nations Educational, Scientific and Cultural Organization, works to promote international cooperation in science, education and culture. To strengthen its scientific work, UNESCO has created Science Co-operation Offices in different regions of the world. This question tests whether you are aware that such offices are spread across several key cities rather than being restricted to just one region.

Given Data / Assumptions:

• The question asks in which combinations of cities UNESCO has set up Science Co-operation Offices.
• Options list three different pairs: Cairo and Jakarta; Nairobi and New Delhi; Montevideo and Venice; and a fourth option, All of the above.
• It is implied that more than one pair might be correct.

Concept / Approach:
UNESCO functions through various regional and field offices to coordinate scientific cooperation. Rather than having one single science office, it uses several locations to cover different parts of the world: North Africa and South East Asia (Cairo and Jakarta), East Africa and South Asia (Nairobi and New Delhi), and Latin America and parts of Europe (Montevideo and Venice). Therefore, each pair given corresponds to real UNESCO Science Co-operation Office locations, so the correct answer is the collective choice, All of the above.

Step-by-Step Solution:
Step 1: Recognise that the question concerns UNESCO Science Co-operation Offices, not just a single headquarters. Step 2: Recall that UNESCO has a science office in Cairo for the Arab region and a similar office in Jakarta for South East Asia. Step 3: Remember that Nairobi and New Delhi serve as important UNESCO regional hubs for science in Africa and Asia. Step 4: Note that Montevideo in Uruguay and Venice in Italy are also associated with UNESCO's regional and specialised scientific activities. Step 5: Since each of the listed pairs is valid, the best answer is the combined option, All of the above.

Verification / Alternative check:
You can verify this by checking UNESCO's official information on its field offices and science sectors. It lists multiple regional science offices and centres, and exam guides on world organisations confirm Cairo, Jakarta, Nairobi, New Delhi, Montevideo and Venice as important locations for UNESCO Science Co-operation Offices or closely linked scientific bodies.

Why Other Options Are Wrong:
Cairo and Jakarta alone: This option is partly correct but incomplete because UNESCO has additional science offices beyond these two cities.
Nairobi and New Delhi alone: Again, this is only part of the full picture and ignores the presence of other science offices.
Montevideo and Venice alone: These cities are important for UNESCO's scientific and cultural work, but choosing only them leaves out other valid locations.

Common Pitfalls:
Candidates sometimes assume there is only one or two such offices and therefore pick a single pair, thinking the question is looking for a unique location. Another pitfall is to treat UNESCO as if it works mainly from headquarters in Paris, forgetting its wide field network. The safest way to handle such questions is to recognise that when multiple correct pairs are listed, the answer is often All of the above if all pairs genuinely match real offices.

Final Answer:
UNESCO Science Co-operation Offices are located in all the listed pairs of cities, so the correct answer is All of the above.