Final answer:
The Green Knight is carrying a holly bob in his other hand, which symbolizes peace and goodwill in the chivalric tale Sir Gawain and the Green Knight.
Step-by-step explanation:
In the context of the narrative surrounding the Green Knight, the object he is carrying in his other hand that is not the axe is a holly bob, which symbolizes peace and goodwill. This is part of the symbolism found in the chivalric tale Sir Gawain and the Green Knight, wherein the Green Knight's appearance with a weapon and a holly bob highlights the dual nature of his challenge - a test of both Gawain's honor in combat and in the face of potential peace. It is important to note that the options presented (e.g., shield, rose, goblet, scroll) are not accurate in the case of this specific literary work. In the tale, the holly bob, in contrast to the axe, can be seen as a representation of peaceful intentions, as it is typically associated with Christmas and is not a weapon.