How did German tactics change to involve the United States in World War I?

Select all that apply.

a. sinking of ships that carried civilians

b. sinking of allied ships

c. using propaganda in other countries

d. unrestircted submarine warfare

e. announcing they wanted total war

A. B. D.

Explanation:

The major reasons why the U.S was involved was because german unrestricted submarine warfare destroyed allied ships carrying american passengers.

just finished this it is b. centrifugal force

d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.