The correct answer is C. It is one simple sentence that has a compound subject and a compound verb.
Step-by-step explanation:
In grammar, a sentence is compound if it integrates or contains two or more complete sentences each with a subject, verb, and complete meaning. This implies for a sentence to be compound it is necessary to have more than one simple sentence. Additionally, in compound sentence eh two clauses or sentences are linked using conjunction and a comma or just a semicolon. For example "Peter likes strawberries; Jessie prefers cranberries".
Thus, the statement that is not a characteristic of a compound sentence is " It is one simple sentence that has a compound subject and compound verb" because it is necessary to have two or more sentences not only one sentence with a compound subject and verb because this would be a simple sentence, not a compound one.