In the Election of 1796, Federalist John Adams was elected President, while 1p
his Democratic-Republican opponent, Thomas Jefferson, received the
second most electoral votes. As a result, Jefferson became Vice President.
This situation was prevented from ever occurring again with the adoption
of which amendment to the U.S. Constitution?
*
A 12th
B 20th
C 23rd
D 25th
Based on the time period, the instillment year is closest to the events which you describe, and seems most relevant. After skimming it, it talks about VPs and POTUSs.