Answer:
D. Decagon not regular because it has 10 sides
4) African economies became dependent on the sale of cash crops and raw materials.
Well really sending food (large scale) to the areas of Africa would really hurt it more (advise u look into it)
but south africa is an interesting topic
. South Africa is like a piece of easily shaped granite (with a few exceptions)
The answer is #2 because it was a steady growth but when 1910 came it started to fluctuate.