The people of the Indus Valley Civilization usually built their houses of

Answer: Option A

Houses of Indus Valley Civilization were one or two stories high, made of baked (Pucca) bricks, with flat roofs. Each was built around a courtyard, with winddows overlooking the courtyard. The outside walls had no windows. Each home had its own private drinking well and its own private bathroom. Clay pipes led from the bathrooms to sewers located under the street.