Who is carried by DOT1?

The Secretary of Transportation is the correct answer because this position is the head of the Department of Transportation (DOT). This role encompasses a broad range of responsibilities, including oversight of transportation policies and programs at the federal level. The Secretary is a member of the President's Cabinet and plays a crucial role in shaping national transportation priorities and initiatives.

The Deputy Secretary of Transportation supports the Secretary and may assume duties in their absence, but does not carry the same overarching responsibilities or authority. The FAA Administrator specifically oversees the Federal Aviation Administration, a part of DOT, but does not represent the entire department. The Vice President does not have a direct role within the DOT and is not involved in its day-to-day operations. Thus, the role of the Secretary of Transportation is distinct and central to the DOT's mission, making it the correct choice.