The correct option is (b).
Explanation
The Indus Valley Civilization is characterized by its sophisticated urban planning and standardized domestic architecture. Residential structures in major cities like Mohenjodaro and Harappa were designed with a focus on privacy, sanitation, and climate responsiveness.- Statement 1 is Incorrect: Harappan houses were not strictly single-storeyed. Archaeological evidence, including the remains of staircases, suggests that many houses consisted of two storeys or had accessible flat roofs.
- Statement 2 is Correct: The architectural layout typically featured a central courtyard with rooms built around it. The courtyard served as the hub of household activities, such as cooking and weaving, providing light and ventilation while maintaining privacy.
- Statement 3 is Correct: Sanitation was a distinctive feature of Harappan housing. Most houses included a separate bathing area with brick-paved floors. These areas were connected to the main street drains via pipes installed through the walls.
- Statement 4 is Correct: Water management was integral to the housing infrastructure. While public wells were available, many individual houses, particularly in Mohenjodaro, contained private wells to ensure a dedicated water supply.
Key Takeaway: Harappan domestic architecture was advanced, featuring multi-storeyed capabilities, courtyard-centric designs, and private sanitation amenities such as bathing areas and wells.