रिक्त स्थानों में क्रमिक रूप से रखने पर निम्नलिखित में से अक्षरों का कौन सा समूह दी गई श्रृंखला को पूरा करेगा? GH_GH_ _ HHG_H

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?