Physical features like water bodies, available of trees and many more influences people settlement in communities
B I think I remember it should be B
Post traumatic stress: when a person experiences a traumatic event and is triggered the will relive the event.
Post traumatic stress can prevent a person from experiencing a full life and prevent them to practice daily tasks. This disorder can impact anyone who has experienced a stressful or traumatic event.
Welfare means well-being and with a minimum support.
General welfare is the concept that all people should have some basic quality of life (home, food, security).
In order to ensure this, there is often a "general welfare"clause in the constitution (US has it, but other countries too).