Let's see. If you are a member of a gang there will be gang wars (personal experience) so option A is out. Poverty means you have nothing and sometimes unity can come from poverty cause people bind together with what they have to survive. So option b is a maybe. C. Is definitely no cause weapons leads to major violence, thing about terrorist. They have weapons and what they cause is violence. So C. is definitely out. D. Gives you an option. You can have violence or you can go along. So D does have a factor with violence. So D is out. So that means B would be the best choice.
Hope this helps
