The Relative Uniformity of Climatic Conditions from the Mediterranean to the Indian

The relative uniformity of climatic conditions from the Mediterranean to the Indian subcontinent resulted in which of the following?

A) Civilizations across the entire region developed farming at roughly the same time.
B) Civilizations across the region competed with one another for resources and were reluctant to share innovations in farming.
C) A uniform culture reigned across the entire region.
D) Innovations in farming and domestication spread rapidly and were easily adapted throughout the region.