Lol he actually answered that
The answer is C. The US and Japan had been bumping heads.
Context please so we can understand what you mean
They changed the culture of the region by bringing weapons and horses that the Africans had never seen before
The correct answer is known as "<span>identity versus identity confusion".
In this stage of Erikson's psychosocial Development, adolescents between the age of 12-18. The transition from being a child towards adulthood are vital, wherein children starts to become independent and start to think about their future, such as their careers, their relationship and their families.</span>