It is a, because he is bald and ashamed of it.
Observe his treatment of black people in town.
Answer:to give the reader a better understanding of the text
Explanation:
when you annotate you let the reader know the mood, or how things are being said. for example: Lets eat grandma is completely diffrent than Lets eat, grandma
Grendel attacks Heorot and devours the first warrior he encounters, when he tries to grab the second warrior, Grendel is shocked when the warrior grabs him back with great strenght (by the time the reader discovers this warrior was actually Beowulf).