Which of these was a factor in the U. S entry in World War 1?

In early 1917 Berlin forced the issue. Its declared decision on 31 January 1917 to target neutral shipping in a designated war-zone became the immediate cause of the entry of the United States into the war. Five American merchant ships went down in March.

Explanation:

the USA entered World War I because Germany had sunk a ship with US passengers, the Lusitania, after an agreement that neither would attack in the sea warzone.

Another factor that caused the USA to enter World War I was the Zimmerman Telegram, Germany sent a coded telegram to Mexico in hopes of getting Mexico to ally with them and turn against the USA.

Hope this helps!

Explanation:

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation: