It is c because you look for links like commas and "and" follow the street; turn right; walk around.
C is the answer. Because he states Too quick for groan or sigh its not A because they curse him with their eyes it wasn't a real curse, Its not B because they turned their face with a ghastly pang, Its not D because they died but they still made thumping sounds.
Grendel's mother arrived in Heorot after the ceremony held on behalf of Beowulf, to thank the warrior for his victory over Grendel. The warriors were resting in the mead hall when Grendel's mother grabbed Aeschere, a warrior most dear to Hrothgar and her son's bloodied arm that was on display.