The complete adjective clause in the sentence is F. that I have prepared.
An adjective clause usually starts with who, whom, when, where, why, that or which. Most often it provides more information and description; however, it will not change the meaning of the sentence.
Answer:
quite calm friendly nightly
Explanation:
The answer is C hope that helps
The preparations that Beowulf and his men make prior to their encounter with Grendel, Apex