"c) the no-third-term rule" is not an example of governance that developed by custom, since this was only implemented after FDR won an unprecedented number of terms as president of the US.
The correct answer is<span>c) the no-third-term rule
There was never an official no-third-term rule in the United States when it was found. All future presidents just retired after two terms because that's how Washington did it. It was only after the presidency of Franklin Delano Roosevelt that they decided to introduce it as an official rule since he won the presidency four times.</span>
