Answer
3. He has not resided in the U.S. for the past 14 years
4. They would disagree too much. Because the president, in the end, has the final say, he/she might just ignore what the vice president has to say. It would just be a mess and that is why they don't do that anymore.
Explanation:
You have to be at least 35 years old, be a resident in the United States for at least 14 years, and be a natural-born citizen.
Hope this helps:)