C.
repertoire
a "collection," so to speak
If I ain't mistaken its C. I shall be all that I am and more.
Answer:
You should write a short paragraph saying about all of them, in a very fast pace sentences
Explanation:
The ones guilty of treachery (most likely spelled that wrong)
A formal tone helps establish the writer's respect for the audience and suggests that the writer is serious about his or her topic. It is the kind of tone that educated people use when communicating with other educated people.