He has erected a multitude of new offices and sent hither swarms of officers to harrass our people and eat out their substance which of these rhetorical appeals is most clearly used here?

The rhetorical appeal that is most clearly used here is letter c, pathos. Pathos is being used in means of having to appeal to the emotions to their audiences and in the wat that it is trying to elicit the feelings that is already present within the individuals.