Answer: C) troubled
Grendel is one of the antagonists of the epic Beowulf. He is a "creature of darkness" and a destroyer of human kind. In this excerpt, the monster is describing his feelings when he notices the advance of man. He explains how all the other creatures of the forest, such as boars and wolves, would be fearful of men. On his part, Grendel feels some "unrest." This shows that the situation causes him to be troubled.