Geographer Derwent Whittlesey divided the world into ________ agricultural regions (not including his area of nonexistent agriculture).

Geographer Derwent Whittlesey divided the world into ________ agricultural regions (not including his area of nonexistent agriculture). 


A) 11
B) 12
C) 5
D) 3
E) 16


Answer: A. 11


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