Question

Which statement BEST explains why United States entered World War I in 1917?

Group of answer choices

The U.S. citizens were calling for war against Germany.

The Japanese launched a surprise attack on the U.S.

The U.S. had evidence of a threat to its national security.

The German navy had sunk the Lusitania that year.

Answer 1

The Japanese launched a surprise attack on the U.S.