The event that led to united states involvement in world war i was: the assassination of archduke ferdinand england's declaration of war the bombing of the maine germany's sinking of american supply ships

The correct answer is: "Germany's sinking of American supply ships".

The US managed to stay out of WWII until 1917 although, until that moment they have been sending supplies to the Allied forces. When Germany used submarines to bomb the supply ships, president Wilson had no option but to declare the war to Germany and to become part of the Allies or Entente countries that were figthing together the Triple Alliance.  

c.

worked constantly and gave many sincere speeches about the importance of independence

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

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