<span> D. The German use of unrestricted submarine warfare
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Explanation:
The Necessary and Proper Clause, which gives Congress power to make “all Laws which shall be necessary and proper for carrying into Execution” other federal powers, is precisely this kind of incidental-powers clause.
The Han dyanisty I am almost confident created fireworks and paper and porclien.
Explanation:
Do you want to know what they were talking about?