How many roads must a man walk down?

The following options seem most accepted:

1) As many as it takes. Which is of course a non definitive answer.

2) 42, which is the ultimate answer to the ultimate question (Dixit Douglas Adams in page 181 and 205 in "The Hitchhikers Guide to the Galaxy"). Which would imply that "How many roads must a man walk down?" is in fact the ultimate question to life, the universe and everything.

3) Just one, the road of life. Which will either make a man a man, or not as the case may be.

4) The answer my friend, Is blowing in the wind. The answer is blowing in the wind.

5) It depends on if one of them is highway sixty one.