The Harappan Civilisation achieved far greater advancement than Sumer, Elam etc. on account of its

Answer: Option A

The town-planning of Harappan culture is one of its most impressive aspects, as though it was the handiwork of a genius of an architect. Immaculate was the arrangement of the city. In every aspect like roads, houses, drainage, bath, granary, the Harappan people have left an imprint of originality and brilliance.