Correct answer: A. UNICEF
Explanation: The direct answer is A, UNICEF. UNICEF is the abbreviation used for the United Nations Children’s Fund. Its work supports children’s survival, health, nutrition, education, protection and well-being, especially in difficult conditions. The reasoning is a name match: United Nations plus Children’s Fund leads to UNICEF, the familiar short form of the organisation. Option A is correct. Option B, UNESCO, is the United Nations Educational, Scientific and Cultural Organization, so it is connected mainly with education, science and culture, not specifically the children’s fund. Option C, FAO, is the Food and Agriculture Organization, concerned with food and agriculture. Option D, ICJ, is the International Court of Justice, a judicial organ that settles legal disputes between states. A useful memory cue is “UNICEF = United Nations for children”; do not confuse the similar UN agency abbreviations.