Answer:
I believe it might be D
Explanation:
I think it's D b/c it's called the Industrial Revolution. SO wouldn't the answer have something to do with the revolution? (D) something to do with the the Industrial Revolution so wouldn't make sense that that be the answer. Also revolution is another word for war. Industrial is another word for business. (D) has to do with war, workers, and industrialist, so it makes sense that the answer would be (D).
The Organization of Petroleum Exporting Countries unites countries extracting petroleum that are involved in the Middle East, since no western states are members.
