Question

I'm not too sure about the answer and would like some clarification.

Answer 1

Answer:

4. Presiding over the Senate.

Explanation:

The Vice president has the duty to preside over the Senate.

What this means is that the Vice president cannot himself vote in the Senate on normal occasions. He can only cast the vote to break the tie when the votes are equally divided. In other cases, he is not voting nor addressing the Senate without senators' permission.