Which of these features of the U. S. government found in the Constitution has been changed by the addition of an amendment?

A) the electoral college

B) a four year presidential term

C) equal representation of states in the Senate

D) selection of U. S. senators by state legislatures

Answer:b

B) a four year presidential term

Explanation:

The Twelfth Amendment was the amendment that allows for the change of the previous way of electing the president and the vice using the article 11, section1, clause 3, in electing the president through the electoral college. This twelfth amendment was a proposal made in the congress in 1803 but it was put into practice in the subsequent elections starting from 1804.

This Ammendment provides for a president to spend four years in a single term but can re contest for another term. It allows for only two terms of four years each for the president.