A Constitutional Amendment to Clarify the Way Votes Are Cast

A constitutional amendment to clarify the way votes are cast in the electoral college was necessary because

A) there was no way to tell which votes were for president and which were for vice president.
B) there was a tie in the electoral votes in the election of 1800.
C) large states did not have fair representation in the electoral college.
D) in three elections no candidate received a majority of votes for the president.
E) there was a tie in the electoral votes in the election of 1800, and there was no way to tell which votes were for president and which were for vice president.