Answer:
The correct answer is a long metaphor with a moral.
Step-by-step explanation:
An allegory is a literary device (a tool that helps writers communicate their ideas in their works) used as a metaphor with a moral or political meaning. A metaphor refers to one thing by mentioning another thing similar in nature. For example, a ghost that haunts a little girl in her bedroom may be a metaphor for her fear of being alone (this does not have a moral or political meaning, it is only a metaphor). Allegories usually have a hidden and complex moral, political or spiritual meaning that the reader must discover as the reading unfolds and that is meant to cause thinking.