It is B, a sudden overthrow of an existing government
here you go
The diplomatic neutrality of the United States was tested during the Napoleonic Wars (1803-1815). The warring nations of Britain and France both imposed trade restrictions in order to weaken each other's economies. These restrictions also disrupted American trade and threatened American neutrality. As time went on, British harassment of American ships increased. Controversial measures included British impressment of American men and seizure of American goods. After the Chesapeake Affair in June 1807, pitting the British warship Leopard against the American frigate Chesapeake, President Thomas Jefferson faced a decision regarding the situation at hand. Ultimately, he chose an economic option to assert American rights: The Embargo Act of 1807.
Impressment
Although not restricted to the presidential administrations of Jefferson and James Madison, the on-going impressment of American sailors became a key issue for the United States during the Napoleonic Wars. After witnessing the horrors of war with France, many British sailors deserted His Majesty's navy and enlisted in the American merchant marines. In order to retrieve the deserters, British "press gangs" came aboard American ships. The British, however, tended to take anyone who could pass as a British soldier – unless the sailor could prove his American citizenship. Approximately 1,000, out of the estimated 10,000 men taken from American ships, were proven to have British citizenship.1
James Madison had summed up the contrasting points of view in an 1804 letter to James Monroe:
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