Answer:
C.
Explanation:
a transcript is a written or printed version of material originally presented in another medium, so that means it was taken by another source. it was written by someone who did not originally experience the event, which is a secondary source.
Answer && Explanation:
unnecessarily restates the editor's claim. We already can see that it would help by looking at sentence 3, and it restates sentence 1. it is an unnecessary sentence.
I guess you would use it at the end to get your point across and show that you have meaning or fact about it