Answer:
Well since you haven't shared the passage it makes this hard. But you can rule out B and D because buildings and huge cities have nothing to do with agriculture. But they did practice intercropping so I would go with C.
Explanation:
They expanded their empire by trade.
July 2001, In Lusaka, Zambia
20 tacos and 24 burritos and Dina gained 40 tacos and 6 burritos.
4
influx means the arrival or entry in large numbers of people or things
I think it is the Libertarian Party
Hope this helps