The correct answer is: A. Chief Justice of Supreme Court
The Constitution does not have the provision to impeach the Chief Justice of the Supreme Court. The only officials who can be impeached are the President, Vice President, and all civil officers of the United States. The Chief Justice of the Supreme Court is a civil officer, but the Constitution does not specifically list them as an official who can be impeached.
The Constitution does not provide a specific reason why the Chief Justice of the Supreme Court is not included in the list of officials who can be impeached. However, it is possible that the framers of the Constitution did not want to create a situation where the President could easily remove the Chief Justice from office. The President is the head of the executive branch, and the Chief Justice is the head of the judicial branch. If the President could easily remove the Chief Justice, it would give the President too much power over the judicial branch.
Another possibility is that the framers of the Constitution did not want to create a situation where the Chief Justice could be impeached for political reasons. The impeachment process is a very serious matter, and it is important to ensure that it is not used for political purposes. If the Chief Justice could be impeached for political reasons, it would undermine the independence of the judiciary.
The Constitution does not provide a specific reason why the Chief Justice of the Supreme Court is not included in the list of officials who can be impeached. However, it is possible that the framers of the Constitution did not want to create a situation where the President could easily remove the Chief Justice from office, or where the Chief Justice could be impeached for political reasons.