Answer:
Add facts abou the events and explain more about what you will talk about.
Explanation:
The benefit is that OPEC coordinates petroleum policies of its member countries which stabilizes the oil markets. Stable oil markets benefits the world economy. Drawbacks include limitations in actual power in terms of controling member countries and actual prices.
The answers would be A and D. These are both true. It is not true however that working hours for children were restricted, nor kids had to be twelve to work. Many children worked at a very young age and didn't have an education.
