What did Germany do in 1915 that tested the United States’ neutral stance in World War I? It sank the Lusitania, which was carrying passengers to Europe.
It refused to sell products to companies in the United States.
It attacked Mexico for its support of the United States.
It sent a secret telegram to Russia asking for an alliance.

Sank the Lusitania

Explanation:

The Lusitania was a British passenger ship, and only a few Americans were killed versus the many British. However, it was found that the ship was carrying weapons for the war.

It's A on edge.

Explanation:

What did Germany do in 1915 that tested the United States’ neutral stance in World War I?

It sank the Lusitania, which was carrying passengers to Europe.

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