- The Gandhi-Irwin Pact (signed on March 5, 1931) was a political agreement between Mahatma Gandhi, representing the Indian National Congress, and Lord Irwin, the Viceroy of India. - The act of the Viceroy negotiating directly with Gandhi, on behalf of the INC, signified the British government's recognition of Congress as a significant political force and Gandhi as its legitimate representative. - This elevated the political status and prestige of the Congress to an unprecedented level, treating it essentially as an equal negotiating party rather than merely an agitating body. - While joining the Second Round Table Conference (Option A) was a key outcome, and gaining status/ authority (Option D) is also true, the core political merit lies in the way Congress was treated during the negotiation process itself, which was as an equal political entity. Option B best captures this fundamental shift in recognition. Option C describes a symbolic moment arising from this recognition, not the merit itself.