Which of the following statements correctly describe the types and structural characteristics of basic clause patterns in English?

A、A simple clause contains a subject and a verb, expressing a complete thought.
B、A compound clause is made up of two or more independent clauses joined by a coordinating conjunction.
C、A complex clause consists of an independent clause and one or more dependent clauses.
D、A compound-complex clause contains at least two independent clauses and one dependent clause.
E、All types of clauses can exist independently without any conjunctions.