Greatest income inequality via widest GDP share gap

Steps:

• Identify extremes as the largest difference between richest 20% and poorest 20% GDP shares.
• Calculate or compare the gap (richest share minus poorest share) for each country using table data.
• Rank countries by gap size to find the maximum disparity.
• Select the country with the widest gap.

Why D is correct:

• South Africa shows the largest gap (e.g., richest 20% hold ~65%, poorest ~3%), per Gini coefficient principles measuring inequality extremes.

Why the others are wrong:

• A. Ghana: Smaller gap (e.g., richest ~50%, poorest ~6%), less extreme than D.
• B. Nigeria: Moderate gap (e.g., richest ~55%, poorest ~5%), not the widest.
• C. Senegal: Narrowest gap (e.g., richest ~45%, poorest ~8%), minimal extremes.

Final answer: D