Which of the following statements are correct about the Harappan civilization:
- The Harappan civilization is the first known urban culture in India.
- Neolithic habitation evidence dates back to around 7000 BC in Mehrgarh.
- Harappan cities were known for their advanced town planning, sanitation, and drainage systems.
- The Harappans primarily built single-story houses from mud bricks.
A1, 2
B3 only
CNone of these
D1, 2, 3
