Answer:
The correct answer is:
B. Article II
Article II of the US Constitution establishes the executive branch of the government, including the President of the United States and the Vice President. This article outlines the powers and responsibilities of the President, including their role as the Commander-in-Chief of the armed forces, the ability to make treaties with other nations (with the advice and consent of the Senate), and the authority to appoint federal officials. Therefore, the leadership of the executive branch is authorized in Article II of the US Constitution.
