TOEFL Listening: ETS-TOEFL听力机经 - EO_81DIA4R0FX19UP$

Why does the professor mention a computer model that was based on cultivation experiments? A. To show the advantages of computer simulations for answering complex problems B. To show the difficulties of determining the age of spikelets found at archaeological sites C. To explain how the cultivation of crops can result in genetic changes D. To explain the claim that the domestication of crops was a short process