4th world country ..........
Abraham Maslow was a psychologist best known for developing a theory about the hierarchy of human needs that is known today as Maslow's hierarchy of needs. Maslow theorized that people moved through stages of needs that motivate them. As the needs are met they move on to higher stage needs.
3rd and 5th for sure, I don't know if there'd be more though.
It’s b because if you put a ball on the table and it’s unbalanced of course the ball is going to move so unbalance it’s B