Match List I (Mineral) with List II (Major Producer) and select the correct answer using the codes given below the Lists

List I | List II
I. Rock Phosphate | (A) Malaysia
II. Manganese | (B) Brunei
III. Tin | (C) Gabon
IV. Petroleum | (D) Morocco

The correct answer is Option 4 (I-D, II-C, III-A, IV-B). This matching is based on the global distribution of mineral resources and the economic profiles of the respective nations.

• I-D (Rock Phosphate - Morocco): Morocco holds over 70% of the world’s phosphate reserves and is a leading global producer and exporter, making it the definitive match for Rock Phosphate.
• II-C (Manganese - Gabon): Gabon is one of the world’s top four producers of high-grade manganese ore, with the Moanda mine being a critical global source.
• III-A (Tin - Malaysia): Historically, Malaysia was the world's largest tin producer. While production levels have fluctuated, it remains the most relevant match for tin among the listed countries.
• IV-B (Petroleum - Brunei): Brunei’s economy is heavily dependent on the oil and gas sector, which accounts for the majority of its GDP, identifying it as a key petroleum producer in Southeast Asia.

Options 1, 2, and 3 are incorrect as they misalign these well-established geographical and economic associations.