In 1915, the United States' neutral stance was tested when Germany O asked Mexico to attack the United States.
O sank the passenger ship Lusitania.
O broke a deal to limit submarine warfare.
signed the Treaty of Brest-Litovsk with Russia.
Please help it’s timed

The answer is B

Explanation:

RMS Lusitania was the British ocean liner that was sunk on 7 May 1915 by a German U-boat 11 miles off the southern coast of Ireland, killing 1,198 passengers and crew.

It occurred  two years before the United States declared of war on Germany.

the nationalists wanted a strong central government so the new country wouldn't fall apart.

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