Answer:
Informational texts include D. an explanation.
Explanation:
An informational text, as the name suggests, has the purpose of informing readers on a particular subject. To do so, they include the necessary explanations concerning that subject, so as to clarify any possible questions, doubts, or counterarguments. Therefore, the answer is letter D. an explanation.
On the other hand, the other options - setting, plot, and conflict - can be found in narrative texts, whose purpose is to tell stories. Those can be fiction or nonfiction. Stories will be set at a certain place, time, and cultural context; they will have a plot in which the conflicts are developed and resolved, resulting in the characters' journey coming to an end.
