Answer:
The beginning lines contribute to Beowulf's characterization as a hero because he vows justice and revenge. Beowulf wants Grendel to pay therefore, he appears ready to confront him. In addition, the lines highlight that Beowulf is capable of handling the monster. According to the text, The Weders avenged (woes had they suffered) supports his readiness to face Grendel.
Explanation:
C. because he states actions in heart and in hands