Q: a: as a result of the presidential election in 1800 a. the united states went to war against britain. b. the new administration issued the monroe doctrine. c. the constitution was amended, changing the way that the vice president was elected. d. the republican party became a major political party to protest the influence of the rich.

c.the Constitution was amended, changing the way that the Vice President was elected. 

*To rectify the flaw in the original presidential election mechanism, the Twelfth Amendment, ratified in 1804, was added to the United States Constitution. It called for electors to make a distinct choice between their selections for President and Vice President.* The flaw was that the people had voted for president and vicepresident, Jefferson and Burr, so they had a tie in votes.