Which was responsible for bringing the us into the world war 1?

The British gave President Wilson the Zimmerman telegram on February 24, and on March 1 the U.S. press reported on its existence. The American public was outraged by the news of the Zimmerman telegram and it, along with Germany's resumption of submarine attacks, helped lead to the U.S. to join the war.

Explanation:

discovery of cape town-portuguese empire

development of africans language-dutch east india company

introduction of railway-british empire

i believe the answer is d. it was not uncommon for people to faint or even convulse at these high-energy meetings.