I think A.
The most remarkable feature of Harappan civilisation was its urbanisation. The Harappan places which were small towns, show an advanced sense of town planning. ... System town planning, drainage system, granary, dockyard, public bathing place, use of bricks, buildings, etc.
Can i see what the options are?
Answer: Family-Owned Businesses
Explanation:
This is a "system" in which the families work is at their house