In my opinion the four reasons should be as under:
1 – First of all you should hire me because I am educated and I understand what your job requirements can be.
2 –Secondly I am young energetic full of enthusiasm and above all always ready to face all challenges.
3 –I am a goal oriented person who loves to work in team. I also understands that a person can achieve his target is only possible if its team is good and ready to work with.
4 –And Last but not least I have a potential to reach the heights of success and I am also confident on saying that I am fully capable of having your seat for myself in near future.