Grendel is depicted as an evil mindless monster whose only goal is destruction and spreading evil. Considering that he's not depicted as an intellectual tactician but rather as a brute who wants to eat others, he would probably just heal up and attack again. Either that or he would ask for help from his mother.
The answer to your question my friend is going to be C.
Hope this helps you out!!!
It is a verb!! Hope it helped!! :)
