The Constitution of the United States:
The Constitution of the United States is the supreme law of the land and establishes the framework for the government. It outlines the powers and limitations of each branch of government, including the executive branch, which includes the President of the United States.

Re-election of the President:
The Constitution does not explicitly address the issue of re-election of the President. This means that the Constitution is silent on the matter, and there are no specific provisions that either allow or restrict a person from being re-elected to the office of the President.

Interpretation of the Constitution:
The lack of explicit language in the Constitution regarding the re-election of the President has led to different interpretations over the years. Some argue that since the Constitution does not expressly prohibit re-election, it must be allowed. Others believe that the absence of any mention of re-election implies that it is restricted.

Historical context:
The issue of re-election of the President was debated during the framing of the Constitution. The framers were cautious about creating a presidency that would resemble a monarchy, and they wanted to ensure that power was not concentrated in the hands of one individual for an extended period. As a result, they intentionally left out any specific provisions regarding re-election.

Amendments to the Constitution:
While the original Constitution does not address re-election, the 22nd Amendment was later added to the Constitution in 1951. This amendment specifically limits an individual to being elected to the office of the President for a maximum of two terms. Therefore, the Constitution, as amended, restricts a person from serving more than two terms as President.

Conclusion:
In conclusion, the Constitution of the United States is silent on the re-election of the President. While there are no specific provisions allowing or restricting re-election, the 22nd Amendment, which was added to the Constitution, restricts a person from serving more than two terms as President. Therefore, the correct answer to the question is option 'B' - the Constitution allows re-election of a person to the President's post.