The Congo river. it provides much needed water to a large portion of the population and provides a large amount of transportation of goods.
I think that the best answer from the options is the following one:
B. lightly regulated markets depressing wages for unskilled workers
The thing is, unskilled workers cannot really pose many demands for their pay, because they can be replaced by other workers. This is what has led to low wages of the unskilled workers, while increasing the wealth of the richest, who own the production means.
I believe it is Spain and France
The correct answer is B. I hope this helps! Best of luck to you! :)
