दिए गए विकल्पों में से उस अक्षरांकीय-समूह (alphanumeric-cluster) का चयन कीजिए जो निम्नलिखित श्रृंखला में प्रश्नवाचक चिन्ह (?) को प्रतिस्थापित कर सकता है। L30M, N37O, P35Q, ?, T40U

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?