I think you didn’t add the excerpt so sorry can’t awnser
The repetition of the word “no” in this excerpt helps create a tone of
B.) doom.
Answer:
-Authority: Who is the author? what is his/her credentials--what university he/she is affliliated? ...
-Usefulness: How this source related to your topic? How current or relevant it is to your topic?
-Reliability: Does the information comes from a reliable, trusted source such as an academic journal?