In the Middle East, Early Cultivation Began as an Attempt

Multiple Choice

In the Middle East, early cultivation began as an attempt to copy, in a less favorable environment, the dense stands of wheat and barley that grew wild in the hilly flanks. All of the following either motivated or facilitated this attempt EXCEPT

A) living in marginal areas most affected by climatic changes.
B) human inventiveness and experimentation that occurred in the optimal zones, such as the hilly flanks.
C) the existence of a vertical economy.
D) population growth.
E) climatic changes that reduced the available amount of wild wheat and barley.