i well have to say that the answer is D
1.Use up land till resources dwindle: nomads
2.Little development of skills, besides ones needed for hunting and gathering.
3.Tribal structure, usually consisting of a few, usually related family units.
4.Emphasis on the "Becoming of Man" ritual instead of other ceremonies i.e. Marriage, birth, and death.
I will look it up for u I’ll send u it