The author's prior knowledge with some opinions from others
Answer:
D. It is a fragment and needs a subject.
Explanation:
"Flew through the meadow" describes something that an object does. It doesn't specify a subject and it doesn't make much sense without one. A good example of a subject for this sentence fragment would be "The bird" or "The butterfly", which would make the sentence "The bird/butterfly flew through the meadow." That would be a complete, logical sentence, since an object to perform the given action is present.
C
who comes to another country to live
