दिए गए विकल्पों में से उस अक्षर-संख्या समूह (alphanumeric-cluster) का चयन करें जो निम्नलिखित श्रृंखला में प्रश्न चिह्न (?) को प्रतिस्थापित कर सकता है। B2F, G10K, L30P, ?, V130Z

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?