The U.S. entered World War I in 1917 primarily due to which of the following?

The correct answer reflects the multifaceted reasons that contributed to the United States' entry into World War I in 1917. Each of the scenarios mentioned played a significant role in shaping American public opinion and government policy at the time.

Germany's declaration of unrestricted submarine warfare was a critical turning point, as it posed a direct threat to American shipping and the safety of American citizens. This aggressive military strategy by Germany led to the sinking of numerous ships, including those with American passengers, heightening tensions and anger among the American public.

Additionally, the Zimmerman Telegram was a pivotal factor. In this secret communication, Germany proposed a military alliance with Mexico should the U.S. enter the war against Germany. The interception and revelation of this telegram to the American public stirred nationalist sentiments and fueled fears of further German aggression.

Moreover, the broader context included the U.S.'s increasing economic ties to the Allies. By 1917, American businesses had substantially invested in the Allied powers, creating an economic interest in their victory. This alignment with the Allies also underscored a moral and ideological commitment to support nations fighting against what was perceived as autocratic regimes, primarily represented by the Central Powers, led by Germany.

Each of these elements—not only one or two—con