The opportunity cost of an item is what you give up to get that item.
The one that is a feature of ancient Indus cities is :
B. Huge structures that served as temples
C. a large , central building the stored grain
Sanitation system only been popularized in the 1900s, so there is no way it exist in ancient Indus city
hope this helps
Answer:
I'm pretty sure the answer is Thunder
The Incas had a centrally planned economy, perhaps the most successful ever seen. Its success was in the efficient management of labor and the administration of resources they collected as tribute. Economic exchanges were made using the barter system by which people traded with each other for things they needed.
How are we supposed to know question but t
