In Beowulf, how does Grendel die?

Question

A. Beowulf grips Grendel and chokes him to death.
B.
Hrothgar and Beowulf attack Grendel with iron spears.
C. In one-to-one combat, Beowulf tears off Grendel's arm.
D.
The companions of Beowulf attack Grendel with their swords.

Answer 1

C. In one-to-one combat, Beowulf tears off Grendel's arm.