Concept:The Harappan city of Dholavira is unique for its elaborate water management system, including large stone-built reservoirs and cisterns located in both the citadel and lower town areas.
Explanation:Dholavira, located on Khadir Bet island in Gujarat, was discovered in 1968 by archaeologist Jagat Pati Joshi.
It is the fifth largest metropolis of the Indus Valley Civilization, after Mohenjo-Daro, Ganweriwala, Harappa (in Pakistan), and Rakhigarhi (in Haryana).
The site has two main parts: a walled city and a cemetery to the west.
The walled city comprises a fortified Castle with an attached Bailey and Ceremonial Ground, plus a fortified Middle Town and a Lower Town.
Unlike most Harappan cities built near rivers, Dholavira relied on stored rainwater.
A series of large cisterns and reservoirs were constructed to the east and south of the citadel and also within the lower town.
These reservoirs were cut from rock and lined with plaster, forming one of the most sophisticated water conservation systems of the ancient world.
Artifacts found include terracotta pottery, beads, copper ornaments, seals, and evidence of copper smelting.
The reservoirs provided water for drinking and irrigation, making the settlement sustainable in the arid region.
Answer:The correct answer is Dholavira (Option C).