The verified response to “Ancient History question: What exactly is true about the Harappan script?” is It remains undeciphered, option D. The original question-specific evidence states: The Harappan script has not yet been deciphered. It remains undeciphered is the correct answer to “What exactly is true about the Harappan script”. 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 It is fully deciphered, It is Kharosthi and It is Brahmi do not satisfy the same combination of site, feature, river region, crop, craft, discovery, chronology or cultural association. Replaying that method confirms It remains undeciphered as the keyed response for this Ancient History question.