Because it leaves almost no trace and no symptoms yet can still kill you very quickly and effectively
I think that its either B, the host's responses to the woman, or C, the woman's excessive commentary. (I'm leaning more towards B, but i'm not sure.)
One example that establishes irony is woman asking if the musician is "grateful" for being introduced to white people and the host's contradictory response. I hope this helped! :)
D.Action is the method of charaterization
The answer is A.
B- uses I instead of me
C- uses her instead of she
D- uses us instead of we
Hope this helps!