From the given excerpt, the following conclusion can be drawn:
C) The authors of the constitution wanted to ensure all people are treated fairly.
The excerpt highlights the provision regarding the trial of impeachments, emphasizing the importance of a fair process. It mentions that the Senate has the sole power to try impeachments, and when sitting for that purpose, they shall be on oath or affirmation. Additionally, it specifies that when the President of the United States is tried, the Chief Justice shall preside. Finally, it states that no person shall be convicted without the concurrence of two-thirds of the Members present.
These provisions indicate that the authors of the Constitution intended to establish a fair and impartial process for impeachment trials. They aimed to ensure that individuals facing impeachment are given a proper hearing, with the requirement for a two-thirds majority to secure a conviction. Thus, the conclusion can be drawn that the authors of the Constitution wanted to ensure all people, including those facing impeachment, are treated fairly.