I think that the answer is D
1) Helping rebels overthrow governments with undesirable leader.
<span>2) Supporting development projects to help prevent poverty.</span>
The issue that caused sectionalism to develop were more geographical. It is mainly because the people in the North was growing more into an industrialized society, that is why they had industrial interest, whereas the South are more focused on their agricultural development.
The answer on (e2020) is D:
<span>it lacked the needed funding and effective planning.</span>
