【单选题】

Which of the following best describes the organization of the passage
A．(A) Factual data are presented and a hypothesis is proposed.

B．(B) A distinction is introduced then shown not to be a true distinction.
C．(C) A thesis is paraphrased, and two assumptions on which it is based are clarified.
D．(D) A definition is challenged, and two reasons for the challenge are given.
E．(E) An opinion is offered and then placed within a historical framework.