b. "...Then all Herot burst into shouts:/ She had carried off Grendel's claw..."
c. "...Sorrow/Had returned to Denmark. They'd traded deaths..."
d. "The soldiers raised their shields and drew/Those gleaming swords..."
Answer:
c. "...Sorrow/Had returned to Denmark. They'd traded deaths..."
Explanation:
This is the sentence that best describes the aftermath of Grendel's mother's attack upon the Danes. In this sentence we learn that sorrow had returned to Denmark. This means that the Danes were mourning something. We also learn that they "traded deaths." Therefore, this indicates that the mourning of the Danes was due to the deaths inflicted by Grendel's mother in her attack.
b. Tamara will fish at the seacoast this summer.
c. Sea horses are very unusual fish.
d. Will you buy some good fresh fish for dinner?