Which is a true statement about the neolithic revolution? a. the neolithic revolution caused a decrease in population. b. the neolithic revolution was also called the pastoral revolution. c. the neolithic revolution took place over thousands of years. d. the neolithic revolution happened relatively quickly, in just five hundred years.

Answer C is correct. The Neolithic Revolution, also called the Agricultural Revolution (not B), was the wide-scale transition from hunter-gatherer societies to agricultural societies, which led to an increase in the population (not a).

It's hard to delimit the time of the Neolithic revolution, but numbers as high as from 12000 years ago to 7 thoursand years ago are being mentioned (in any case, it took place over thousands of years).