Concept:The UN has specialized agencies that work under its coordination. The International Criminal Court (ICC) is an independent body, not a UN agency.
Explanation:FAO, UNESCO, and WHO are all specialized agencies of the UN.
The ICC was set up by the Rome Statute, which was created within the UN but gives the Court independent legal status.
The ICC is not part of the UN system of specialized agencies or principal organs.
Thus, among the options, only the International Criminal Court is not a UN agency.
Answer:D. International Criminal Court