Answer: 7 is greatness and 8 is amusement
Explanation:
I believe the best answer here is A. it uses imperfect coordinating structure.
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).