Why was the transfer of power after the election 1800 significant?

A. It set the precedent that intense campaign elections hurt the peaceful transfer of power and should be avoided.

B. It set the precedent that elections should never be decided by the House of Representatives because that threatened a peaceful transfer of power.

C. It set the precedent that political parties would always challenge the results of the election to make sure the transfer of power was legitimate.

D. It set the precedent that the losing faction would accept the election results and help with a peaceful power transfer.

the election of 1800, the nation's two parties had taken more definite shape. The Presidential race was hotly contested between Federalist President, John Adams, and Democratic-Republicans, Thomas Jefferson. ... It marked the first peaceful transfer of power between political parties in American history. 1 answer

The election of 1800 marked the first time the leader of one political party handed the reins of government to his opponent. 2nd answer

I think the first one is right