Final answer:
Examples of dramatic irony in the epic poem 'Beowulf' include Grendel's strength being underestimated by the warriors, the familial connection between Beowulf and Grendel, and Beowulf's awareness of his impending defeat.
Step-by-step explanation:
One example of dramatic irony in the epic poem 'Beowulf' is B) Grendel's strength being underestimated by the warriors. This is ironic because the warriors believe they are prepared to defeat Grendel, but they are proven wrong when Beowulf arrives and shows his true strength. Another example is C) Beowulf and Grendel sharing a familial connection. This is ironic because they are enemies, but they are also connected by blood. Lastly, D) Beowulf being aware of his impending defeat is another example of dramatic irony. Beowulf knows that he will not survive his battle with the dragon, but he still chooses to fight.