जागतिक बँकेच्या विश्व विकास अहवाला (2010) बाबत पुढील दोन विधानांपैकी कोणते योग्य आहे ?
(a) विकसनशील अर्थव्यवस्थेखाली विश्वाची सुमारे 83% लोकसंख्या आहे व ती जगाच्या सुमारे 38% स्थूल राष्ट्रीय उत्पन्न आय दर्शविते.
(b) युरोपातील काही देश विकसनशील अर्थव्यवस्था दर्शवितात.
पर्यायी उत्तरे :

The correct answer is Option B (Only (b)).

Key Points:
• World Bank's World Development Report (WDR) 2010:
• Statement (a) is incorrect: According to the World Development Report 2010 (*Development and Climate Change*), developing economies accounted for approximately 84% of the world's population, but generated only around 20% to 22% of World Gross National Income (GNI) at market exchange rates (around 40% at PPP terms, but statement 'a' refers to standard GNI percentages with erroneous matching).
• Statement (b) is correct: Under the World Bank's regional income classification, several countries in Eastern and South-Eastern Europe (such as Albania, Belarus, Bosnia and Herzegovina, Bulgaria, Romania, and Ukraine) were officially classified as developing/middle-income economies rather than advanced high-income economies.
• Official Final Answer Key confirms Only (b) (Option 2).
• Key Takeaway: WDR 2010 classified several Eastern European countries as developing economies; population-GNI share in (a) was keyed incorrect.