based on this excerpt, what fact supports kamens belief that the segway may change the way people move…

Brief Explanations:

The text states that Kamen believes the Segway may change how people move around crowded cities by reducing car traffic and auto - emissions. The option "Segways can reduce the amount of car traffic and auto emissions" directly supports this belief as it links the Segway's potential use (in cities) with the effect (reducing traffic and emissions) that would change the way people move around (by having less traffic, people can move more freely in a different way). The other options are either about other inventions (Ibot), a feature of the Segway (gyroscopes for balance - which is more about its operation rather than its impact on city movement) or a general statement about its use (in many parts of the world - which is too vague to directly support the claim about changing movement in crowded cities).

Answer:

Segways can reduce the amount of car traffic and auto emissions.