One fundamental change that marks the beginning of the Neolithic period is:

Question

A. year-found settlements.
B. use of the bow and arrow.
C. weaving
D. use of stone tools

I think it's A, but not sure.

Answer 1

Please proofread what you typed for A.

Answer 2

http://www.penfield.edu/webpages/jgiotto/onlinetextbook.cfm?subpage=1525826

See paragraph 3.

If you meant "year-round," then I agree with you.