नीचे दिए गए विकल्पों में से उस एक की पहचान करें जो प्राचीन भारतीय गण-संघों (जनतांत्रिक गणराज्यों/कबीलों) या राज्यों की समान श्रेणी से संबंधित नहीं है:

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?