Final answer:
The statement about Beowulf's men chopping Grendel's arms into pieces while Beowulf holds him is false. Beowulf tears off Grendel's arm by himself.
Step-by-step explanation:
The statement "As Beowulf holds him, Beowulf's men chop Grendel's arms into pieces" is false. In the epic poem Beowulf, Beowulf himself grapples with Grendel and it is Beowulf who tears off Grendel's arm. Beowulf's men do attempt to help by attacking Grendel with their swords, but their blades cannot pierce Grendel's skin. Therefore, it is not a collective effort where Beowulf holds Grendel while his men dismember him, but rather Beowulf's own strength and courage that lead to Grendel being maimed.