Read the paragraph.

Scientific nonfiction gives facts and details about the scientific world. It might be about electricity, matter, or different ecosystems. In the same way, historical nonfiction gives facts and details about historical events. It might be about a world conflict or a different time period. If you are interested in learning about interesting science facts and ideas, scientific nonfiction is a good choice. Otherwise, if you enjoy learning facts and ideas about the past, historical nonfiction might be for you. _____________________________________.

Which is best as a concluding sentence at the end of the paragraph?

A) Scientific and historical nonfiction are genres that provide information.
B) Remember, scientific nonfiction reports on scientific topics.
C) Both nonfiction genres are excellent sources of useful knowledge.
D) Historical nonfiction, on the other hand, reports on topics in history.

The answer is C) Both nonfiction genres are excellent sources of useful knowledge.