The verified response to “Ancient History question: What exactly does the organized layout of Harappan streets suggest?” is Advanced town planning, option B. The original question-specific evidence states: The right-angled street pattern reveals advanced town planning. Advanced town planning is the correct answer to “What exactly does the organized layout of Harappan streets suggest”. 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 Temporary settlements, Forest life and Only military camps 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. Replaying that method confirms Advanced town planning as the keyed response for this Ancient History question.