C. The state of Virginia.
This is the sentence fragment that requires only a predicate in order to be written as a complete sentence.
Predicate is identified as a part of a sentence that talks about the subject of the sentence. In short, the predicate is anything but the subject.
Choice C. The state of Virginia is the subject of the sentence. So, anything added to describe the subject is a predicate.
For example: The state of Virginia is in the United States of America.
The predicate in the sentence is : is in the United States of America.
