रिक्त स्थानों पर क्रमिक रूप से रखने पर निम्नलिखित में से कौन सा अक्षर समूह स्वरूप को पूरा करेगा? ba _ b _ aabb _ a _ _ a _ b

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?