| Which one of the following is not the characteristic feature of the Harappan settlement? |
(a)Doorways and windows generally faced the side lanes and rarely opened into the main streets  |
| (b)Houses generally had separate bathing areas and toilets |
| (c)The citadel was walled but the lower towns was not walled |
| (d)Drains and water chutes from the second storey were often built inside the wall |
