Looking for a Driver

There was a man who was looking for a stagecoach driver that could transfer his belongings quite a distance. The man had three drivers approach him for the job. He asked only one question of each of the drivers:
“How close can you drive your stagecoach to the edge of a ravine without going over?”
The first man answered confidently, “I can bring the wagon wheel within one foot of the edge, and you will be safe.”
The man let the second driver in.
“How close can you drive your stagecoach to the edge of a ravine without going over?”
The second driver answered confidently, “I can bring the wagon wheel within six inches of the edge, and you will be safe.”
The man let the third driver in.
“How close can you drive your stagecoach to the edge of a ravine without going over?”
The third driver answered confidently, “I don’t know. Whenever I drive a stagecoach, I stay as far from the edge as possible.”
Guess who got the job?