Which of the following BEST supports the idea that large civilizations could not develop without fertile land for farming?
A
The Bantu people, in the eastern part of modern Nigeria, cultivated yams, oil palm trees, millet, and sorghum and herded cattle.
B
Muslim merchants could now make their way across the desert to the west coast.
C
In Australia, agriculture never really materialized. Soils were poor, and the island was isolated.
D
The rain forests there today may even have once been orchards that supported large populations
