Which of the following works of literature employ a framed narrative device?

A framed narrative presents a main narrative for the purpose of presenting a second narrative or a set of shorter stories, within that main narrative. The works of literature from the list that employ a framed narrative device are:

1) Beowulf

This epic poem, Canto VII is presented in the main narrative as a dialogue Unferth and Beowulf, in which they share their stories. Other parts of the poem are presented in the main narrative as a Bard's song, like fued between the Danes and the Frisians.

2) The Divine Comedy

In this work of literature, in the main narrative the narrator, Dante, presents the secondary narrative of an imaginary journey by a character also named Dante through the three realms of the afterlife: hell, purgatory and heaven.

3) The Decameron

In this work of literature, 100 tales are told by a group of seven young women and three young men escaping the Black Death by sheltering themselves in a secluded villa just outside Florence. In this work, the main narrative are the young men and women escaping the plague and the secondary narratives are the 100 tales told by them.

4) The Canterbury Tales

In this work of literature, 24 stories are presented as part a story-telling contest that takes place in a journey from London to Canterbury by a group of pilgrims. The contest is the main narrative and the 24 stories are the secondary narratives.

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cassius, casca, and their allies plant false documents to manipulate brutus to join their cause to remove caesar. after doing so, they visit brutus at night in his home to persuade him of their views. there they plan caesar's death. brutus is troubled but refuses to confide in his devoted wife, portia. on 15 march, caesar's wife, calpurnia, urges him not to go to the senate. she has had visionary dreams and fears the portents of the overnight storms.