In which source would a researcher most likely find unbiased information?

a. an encyclopedia article

b. an oral history

c. an editorial

d. an advertisement

The answer is A. Researchers would most likely find information that is unbiased from an encyclopedia article. Encyclopedia is a reference containing a wide range of knowledge. It is divided into articles. These articles are organized in an alphabetical manner. Encyclopedia articles are written in a neutral way. They are written not to convince a reader to certain idea. Things written are facts therefore unbiased.