It would be D b/c it’s refers to the state and church

beowulf asks Hrothgar to allow him and his men alone to drive Grendel from Herot.
Answer:
Three Ways to Turn a Fragment into a Complete Sentence
Attach. Attach the fragment to a nearby complete sentence. Incorrect: I forgot to eat breakfast. ...
Revise. Revise the fragment by adding whatever is missing – subject, verb, complete thought. ...
Rewrite. Rewrite the fragment or the entire passage that contains the fragment.
Explanation:
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They woke Brabantio up because they believed that his daughter was being robbed. Since he's a senator, it would help them to inform him.