Answer:
C: a reference to a familiar literary or historical person or event, used to make an idea more easily understood
Explanation:
Allusion is a literary device used to make a reference to a lake or someone known to the reader or the public that is consuming the established media. The allusion is placed to increase public understanding, making a clear and well-defined reference.
An example of this is: "When I left for work, the day was so dark, it seemed like a setting for a short story by Edgar Alan Poe."
