ख्रिस्ती मिशनऱ्यांनी सुरू केलेल्या धर्मांतर प्रक्रियेविरुद्ध सर्वप्रथम आवाज कोणी उठवला ?

The correct answer is Option D (Vishnu Buva Brahmachari).

Key Points:
• Vishnubuva Brahmachari's Crusade Against Proselytization:
• Vishnubuva Brahmachari (Vishnu Bhikaji Gokhale, 1825–1871) was a staunch defender of Vedic Hinduism and an early utopian thinker in 19th-century Maharashtra.
• When Christian missionaries (like John Wilson and others) aggressively attacked Hindu scriptures and converted young Hindus in Bombay, Brahmachari organized open public debates.
• In 1856–57, he held famous weekly public lectures at Chowpatty, Mumbai, directly challenging missionary propaganda and defending Vedic tenets against Christian critics.
• His vibrant debates were documented in the book *'Samudra Kinarecha Vad'* (समुद्रकिनाऱ्याचा वाद).
• He also authored *'Vedokta Dharmaprakash'* (१८५९) and proposed an early socialist welfare state model in *'Sukhadayak Rajyaprakarni Nibandh'*.
• Key Takeaway: Vishnubuva Brahmachari openly challenged Christian missionary proselytization through public debates at Mumbai Chowpatty in 1856–57.