Answer :
c. the city had been well planned with streets laid out in a grid pattern
Answer:
The city had been well-planned with streets laid out in a grid pattern.
Explanation:
The streets of Mohenjo-Daro were laid out in a grid pattern that had been well-planned. Mohenjo-Daro and Harappa, another city built by the Indus Valley Civilization, are believed to be the oldest planned cities in the world.