The answer is C. Bias.
Bias means favoritism for or against a certain thing or idea. If your friends like the book, that will affect your judgement to whether it truly is a good book or not.
your question is wrong please recheck and repost question
If a person were using this source and the tables to which it refers to a primary source.
I think the answer is B) a primary source since in most research projects it's important to use primary instead of secondary sources!
~ Hope I helped & Good luck!
