I believe it is because if New England started a manufacturing industry, it could result in self-sufficient colonies, and England also wouldn't make money off of them.
Ex.
a) south produces raw material => sent to North => Raw materials processed and sold
b) south produces raw material => sent to England => England processes raw materials => can be sold to the colonies and other countries
Answer: D. Italy's heavy losses to the British in North Africa. The Germans sent Erwin Rommel to North Africa to beat back the British.
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