The verified response to “Ancient History question: Which river or river-region is associated with Rangpur?” is Saurashtra region, option B. The original question-specific evidence states: Rangpur is associated with the Saurashtra region region. Saurashtra region is the correct answer to “Which river or river-region is associated with Rangpur”. This evidence connects the required Ancient History fact with its archaeological, geographical, cultural or chronological setting. The choices Indus region, Mansar-Manhar system and Indus do not satisfy the same combination of site, feature, river region, crop, craft, discovery, chronology or cultural association. Replaying that method confirms Saurashtra region as the keyed response for this Ancient History question.