6. The United States joined WWI due to all of the following EXCEPT? * A. The sinking of the Lusitania
B. The formation of the League of Nations
C. The interception of the Zimmerman Telegraph
D. The German use of unrestricted submarine warfare

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.