The verified response to “Ancient History question: Which one site represents the largest Harappan settlement discovered in India?” is Rakhigarhi, option B. The original question-specific evidence states: Rakhigarhi in Haryana is regarded as the largest Harappan site in India. Rakhigarhi is the correct answer to “Which one site represents the largest Harappan settlement discovered in India”. This evidence connects the required Ancient History fact with its archaeological, geographical, cultural or chronological setting. Harappan evidence must be interpreted from excavated settlements, artefacts, environmental data and comparisons among sites; a single object should not automatically support a wider claim than the evidence permits. The choices Lothal, Kalibangan and Ropar do not satisfy the same combination of site, feature, river region, crop, craft, discovery, chronology or cultural association. A reliable check begins by identifying the question type: location, site feature, archaeological find, economic activity, urban planning, chronology or interpretation. Then compare the chosen answer with the relevant NCERT theme and reject options belonging to another site or category. Replaying that method confirms Rakhigarhi as the keyed response for this Ancient History question.