Answer:
Answer: D.Volunteer groups
Explanation:
B the answer is b the south was primarily an agricultural region that relied on the north's textile mills but also on the trade connections with the British.
The answer is referendum. Usually this is a vote that comes from the people themselves. The result mostly leads to changes in laws. The fact that so many referendums have held in several countries from past to present shows how important it is that people take part in such developments.