01 What provides evidence of multi-storeyed houses in Harappan cities?
Answer and explanation
Correct answer: A. From remains of staircases
Explanation: Archaeologists infer the existence of upper storeys from structural remains. Staircases provided access between floors, while unusually thick walls could support additional weight above the ground floor. Therefore, the remains of staircases are the clearest evidence and make option A correct. Seals and weights inform us about administration, trade, or identity, and graves reveal burial practices; neither directly demonstrates multi-storeyed domestic architecture.