A. विकासशील देशों को fair economic opportunities / Fair economic opportunities for developing countries
Explanation
Step 1: Identify the concept: this is decolonisation and global economy. Step 2: Developing countries demanded New International Economic Order for resource control and fair trade. Step 3: Remember NIEO with economic justice demands of developing countries.
Step 1: concept पहचानें: यह decolonisation और global economy है। Step 2: Developing countries ने New International Economic Order की मांग resource control और fair trade के लिए की। Step 3: NIEO को developing countries की economic justice demand से याद रखें।