In a newspaper, an editorial would be classified as a(n) essay, and a standard news article would be considered a(n) essay.
a. persuasive; expository
b. expository; descriptive
c. persuasive; research
d. narrative; persuasive

An editorial is written to express the newspaper's team's opinion/position on a topic. This could be considered as a persuasive text. On the other hand, an article is a non-fiction text that informs about a specified topic. This could be considered as an expository text.

Remember that the four purposes of writing are
Expository
Persuasion
Expression
Entretainment

Because these two texts don't fall under any other of these four categories, your best answer is option A.

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