Correct Answer: (a) Mohenjodaro
Solution:The Great Bath is one of the well-known structures among the ruins of the ancient Indus Valley Civilization at Mohenjo-daro in Sindh, Pakistan. The foundation of Great Bath, measures 55 metres North-South and 33 metres East-West. In the Middle of Great Bath the pond measures 11.8 metres x 7.04 metres and has a maximum depth of 2.4 metres.