The correct answer is She is bound and determined to kill the Danes for the loss of her son.
After her son Grendel returned to their cave mortally wounded, his mother wanted to take revenge. The Danes or Geats do not know she exists; they seem to believe that after defeating Grendel, they are safe. Taking advantage of the surprise factor, Grendel's mother goes to Heorot, waits until everyone is asleep after the celebrations and attacks.
I believe the right answer is the first one
This is an example of free verse
The mayor Kendrick uses respective data