Answer:
B. expository essay
Explanation:
The type of nonfiction writing described in this scenario is an expository essay.
Hello!
There are many theories about tooth problems. In ancient times many people believed that people could lose their lives to tooth problems, due to spreading infections throughout the body.
If you had lots of cavities or other tooth problems, and you do not get them cured, they will most likely fall out and infection could spread, which could be fatal.
I hope this helps!