In Hitman: Absolution, certain actions earn you bonus points. These bonuses add points to your score. Based on your score at the end of the mission, you are given a ranking, on a scale from Agent to Silent Assassin.
What's confusing is that not only is "Silent Assassin" the best ranking, but one of the bonuses that you can achieve is also named "Silent Assassin".
I've also proved that it is possible to get the Silent Assassin Bonus, but lose the Silent Assassin Ranking through stupidity afterwards.
What are the requirements for the Silent Assassin Bonus?
What are the requirements for the Silent Assassin Ranking?
Is it possible to get the Silent Assassin Ranking without the Silent Assassin Bonus?