The term "Allegory" in literature means-

Correct answer: A literary term in which one story is told in the guise of another story.

Allegory:
- Allegory is a literary term in which one story is told in the guise of another story.
- In other words, an allegory is a story of double meaning or a story within a story.
- রূপক বা প্রতীকাশ্রয়ী কাহিনীর মাধ্যমে কোন কিছুর বর্ণনা করা হয়।
- It may be both in prose or verse.
- Bunyan’s Pilgrim’s Progress is a well-known allegory in prose that deals with the Christian notion of a soul’s salvation.
- Example:
- Dryden’s Absalom and Achitophel is a political allegory.
- Animal Farm is the most famous allegory by George Orwell.

Other options:
খ) A literary attack on the vices of an individual or society- is called "Satire".

গ) A bitter satire in verse that ridicules a person or group- is called a "Lampoon".

ঘ) A work of literature which has stood the test of time- is called a Classic.

Source:
1. Britannica.
2. An ABC of English Literature, Dr. M. Mofizar Rahman.