All of these answers could be true, I know for a fact that A is true, could you give more context?
Answer:
The Vice President serves as a "back-up" to the President, who also serves as the Head of State (President of the Senate, presides over joint Congress sessions).
In the presidential line of succession, the Vice President is the second in command.
1. the powers that people want/constitution
2.D
3.B