I'm no expert on linguistics, but I think the first statement speaks out the most to me
B. Highlights of the Nebraska Museum of Art
Explanation: the other options focus on aspects that does not focus on the art displayed in the museum. A talks about physical sites, not the actual art. C talks about the importance of art which is a general title that does not specify the needed topic (it is also not a basis of informing— this is usually opinionized) while D talks about the instructional basis of artists learning paint: not the art displayed itself.
Ethos uses responsible research practices and fair use of appeals to establish _________________. your answer is b credibility because ethos does use responsible research