The Correct Answer is A) City Ruins Show Planning.
The Indus Valley Civilization is one of the oldest in the world. It gave rise to the modern 'Indian' Civilization but is largely based in Modern-Day Pakistan.
The most well-known cities from this time are Harappa and Mohenjodaro, both in pakistan.
When the ruins were discovered, the most surprising aspect was the amazing and complex layout of the cities.
They were well planned, in a grid style with proper drains for sweage etc.
This is one of the first indications that the Indus Valley Civilization was highly complex.
