The answer is
B. Spain and the U.S. signed the Adams-Onis Treaty
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(A) it appoints federal judges
The Constitution enumerates certain powers which are reserved to the federal goverment and other powers which are delegated to the state.
Those powers which are not explicitly related in the document to any of the goverment levels will automatically be reserved to and exercised by the supreme federal goverment.
Answer:
The terrorist attacks of 9/11 as it was conducted by a group present in Afghanistan
