The correct answer is option 4: Pottery. Kalibangan, which is located in present-day Rajasthan in India, is famous for its pottery in the context of the Indus Valley Civilization. Archaeological excavations at Kalibangan have revealed a large number of pottery artifacts, which are considered some of the finest examples of pottery from the Indus Valley Civilization. The pottery found at Kalibangan includes various types, such as storage jars, cooking pots, vases, and bowls, among others. These artifacts provide valuable insights into the life and culture of the people who lived in the Indus Valley Civilization. Pottery was an important aspect of their society, serving as containers for storage and cooking, as well as for religious and ceremonial purposes.