The verified response to “Ancient History question: Large signboard-like Harappan letters were found at:” is Dholavira, option D. The original question-specific evidence states: Dholavira yielded a famous signboard with large Harappan letters. Dholavira is the correct answer to “Large signboard-like Harappan letters were found at:”. 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 Harappa, Mohenjodaro and Kalibangan do not satisfy the same combination of site, feature, river region, crop, craft, discovery, chronology or cultural association. Replaying that method confirms Dholavira as the keyed response for this Ancient History question.