Which is the best definition of a primary source document

What viewpoint about german soldiers does maupassant convey in this excerpt of "two friends"? a. they are all loyal, but heartless. b. they are all cold–hearted and inhuman. c. they are all sympathetic and smart. d. they are all men of their word and good soldiers.

How could an audio recording most likely convey the characters emotions during the scene

How is dr. lanyon characterized in the excerpt? as friendly as arrogant as wise as mournful