Answer:
The sea provided a seaweed poultice. Juana didn't have as much faith in it as she would in a doctor's remedy because the seaweed lacked “authority”.
Explanation:
Hrothgar asked Beowulf to battle Grendel's mother because the king believed he was the only man capable of dealing with such monsters. This was because Beowulf had earlier succeeded in mortally wounding Grendel. Further, Hrothgar wanted revenge for his close friend.
