Answer:
At a feast before nightfall of the first day of the visit, an obnoxious, drunken Scylding named Unferth insults Beowulf and claims that the Geat visitor once embarrassingly lost a swimming contest to a boyhood acquaintance named Breca and is no match for Grendel. Beowulf responds with dignity while putting Unferth in his place. In fact, the two swimmers were separated by a storm on the fifth night of the contest, and Beowulf had slain nine sea monsters before finally returning to shore.
Explanation: