Which speaker most likely represents a public interest group

The speaker most likely represents a public interest group would be:

Speaker 2

Speaker 2 not only states a problem of an specific interest group, like the other speakers, but also provides a solution. He also includes himself in the speech and makes a call to action to his audience, searching support and sympathy while representing his interest group. This kind of speeches look for reaction.

a.

congress passed laws allowing for free passage between states.