Well, In the beginning His response is not much different, As Grendel only sees Beowulf as an Average citizen. Grendel is not fearful when they first meet, in fact (if i remember correctly) he is excited that Beowulf and his followers had come (So he could have more victims)
It's not until Beowulf Grabs Grendel "By the claws" That he's fearful. once beowulf shows that he's just as strong/maybe stronger Grendel becomes scared and "Wishes he could run away"
Normal Citizens were easy for Grendel to target, and easy victims for Grendel to Slaughter for his enjoyment. Beowulf is was not.
A.) lines 6-9
If the British march
By land or sea from the town to-night,
Hang a lantern aloft in the belfry-arch
Of the North-Church-tower, as a signal-light, —
One if by land, and two if by sea;
Bih can't understand that ugly hand written
I could be wrong but I think it is A
Vengeful, because it described the injury and vengeful means seeking to harm someone in return for a perceived injury.
