How do the challenges that Chris Gardner (Will Smith) faces impact his access to the American Dream?

I would contend that the right answer is the B) His need to wander and explore America.

Explanation: Just to elaborate a little on the answer, it can be added that by looking at the lyrics of the song, and specifically at these lines, it is possible to infer that Woody Guthrie wrote these lines about his need, his desire, and his firm decision to wander and explore his country, the United States. There are no references to the southern chain gangs. Likewise, there does not seem to be a connection between these lines and the people he met at a concert. It can be argued that the song does seek to help people develop pride in their land, but it is primarily a song about the urge to roam around one's country.