निम्नलिखित में से कौन सा आरेखीय प्रतिनिधित्व आर्थिक विकास के दौरान आय असमानता में होने वाले बदलाव को एक उल्टे U-आकार के वक्र (inverted U-shaped curve) के रूप में दर्शाता 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?