The necessary and proper clause allows congress to a. stop the president and supreme court justices from acting improperly. b. take all necessary measures during elections to ensure reelection. c. to expand its powers as needed to run the country. d. make all laws that are needed to carry out powers given to it in the constitution.

explanation:

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when world war i broke out across europe in 1914, president woodrow wilson proclaimed the united states would remain neutral, and many americans supported this policy of nonintervention. however, public opinion about neutrality started to change after the sinking of the british ocean liner lusitania by a german u-boat in 1915; almost 2,000 people perished, including 128 americans. along with news of the zimmerman telegram threatening an alliance between germany and mexico, wilson asked congress for a declaration of war against germany. the u.s. officially entered the conflict on april 6, 1917.