Is It Possible to Form a Categorical Proposition That Has

Is it possible to form a categorical proposition that has only a subject or only a predicate but not both?

A) No, since a categorical syllogism expresses a relationship between a subject and predicate.
B) No, since every categorical proposition must have all five parts.
C) A categorical proposition could lack a subject, but it must have a predicate.
D) A categorical proposition could lack a predicate, but it must have a subject.
E) Yes, as long as the proposition contains either a subject or a predicate.