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Answer:
16. y. Gibbons V Ogden
Explanation:
"This Supreme Court decision forbade states from enacting any legislation that would interfere with Congress's right to regulate commerce among the separate states." -From the National Archives
This decision was following the invention of the Steamboat by Robert Fulton
U.S., Britain, and France
Because they were against blacks and captured and killed them.
The best example of "gunboat diplomacy" under Roosevelt is "<span>C. Panama" since Roosevelt felt that this region was also a part of the US's interest since it was open to attack. This was also his "big stick diplomacy".</span>