Which one of the following Harappan sites has yielded evidence of a wash basin in the toilet of a house?

Archaeological excavations at Banawali (Haryana), conducted by R.S. Bisht, revealed a multi-roomed house belonging to a wealthy merchant that contained a toilet with a unique feature: a pottery jar placed at a height in a corner, which functioned as a wash basin. Wastewater from this basin was carried through a drain into a sullage jar on the street. While sites like Lothal and Mohenjo-daro had advanced sanitation and toilets, the specific architectural evidence of a 'wash basin' inside a house's toilet is a hallmark finding of Banawali.