Which sentence best describes an example of an allusion?

The correct answer is B. A character describes another character as Romeo.
Explanation
The allusion is a concept that is used to associate characters, situations, events, or even other texts. The allusions, therefore, are intended to give the reader or listener a preliminary idea so that he understands an idea. According to the above, if a character describes another character referring to Romeo's characteristics, he is using the allusion to have Romeo as a point of reference, to establish the idea of another character. So the correct answer is B. A character describes another character as Romeo.