Answer:
D: While Ms. Muñez has an impressive track record as a large business owner, we feel that she lacks the public service experience needed to serve as mayor of Brookside.
Step-by-step explanation:
In a certain sense we can use the word "bias" to identify some type of comment, speech, analysis or exposition that has a biased character, disrespecting an expectation of impartiality. In this case, the letter D expresses an opinion that shows the bias of the writer because it shows that even Muñez having a good record, the author does not believe that she is a good option for mayor of the city.