Mike is correct. However, occasionally the predicate comes before the subject, so the question is not worded well.
That is what I thought that it could of been mistaken for a subject also
Actually, the correct answer is B) subject. For a sentence to be complete, it must have a subject and a predicate. The subject is the part of the sentence that typically indicates who or what the sentence is about, while the predicate is the part that contains the verb and provides information about the subject. So, in order to have a complete sentence, both the subject and the predicate are necessary.
