The correct answer is A. Harappa and Mohenjodaro.
Harappa and Mohenjodaro were the two largest cities of the Indus Valley Civilization. They were located in what is now Pakistan. Harappa was located in the Punjab region, while Mohenjodaro was located in the Sindh region. Both cities were built on the banks of rivers, and they were both well-planned and organized. They had a complex system of drainage and sewage, and they were also home to a number of public buildings, including granaries, baths, and workshops.
Kalibangan, Banawali, and Lothal were also important cities of the Indus Valley Civilization, but they were not as large or as well-known as Harappa and Mohenjodaro. Kalibangan was located in the Rajasthan region, Banawali was located in the Haryana region, and Lothal was located in the Gujarat region. All three cities were built on the banks of rivers, and they all had a complex system of drainage and sewage. They were also home to a number of public buildings, including granaries, baths, and workshops.
The Indus Valley Civilization was a Bronze Age civilization that flourished in the northwestern Indian subcontinent from 3300 to 1300 BCE. It was one of the world’s earliest urban civilizations, and it was also one of the most advanced. The Indus Valley Civilization was known for its sophisticated urban planning, its well-developed system of drainage and sewage, and its large public buildings. It was also a major center of trade and commerce.
The Indus Valley Civilization declined around 1300 BCE, and its cause of decline is still unknown. Some scholars believe that it was due to a natural disaster, such as a flood or an earthquake. Others believe that it was due to invasion from outside. Whatever the cause, the Indus Valley Civilization disappeared without a trace, and its people left behind no written records.