The blame was the industry that took their land
A new out look on how the world would be ran in the future. There would probably be less traditional things
The 
would enable a woman to assess a man's level of commitment, detect the existence of prior commitments to other women or children, and simultaneously signal to the man her sexual fidelity.
I’m not 100% sure, but I believe the answer is D.
Hope this helps! ^^
“First stage” will be the answer you are looking for hope this helps
