“Three Skeleton Key” got its name as the narrator tells us from three escaped convicts: shiukf have commas after name and us. Option B.
The correct form would be “Three Skeleton Key” got its name, as the narrator tells us, from three escaped convicts: shiukf have commas after name and us.
Commas should be placed there because the speaker is adding a comment that should be separeted of the rest of the sentence-
As can be used as a conjunction or as an adverb. when it is used as an adverb, you don’t use a comma.