Which of the following best describes the organization of the argument that the author of the passage presents in the last two paragraphs
(A) Two approaches to testing a hypothesis is described, and the greater merits of each approach are compared. (B) The assumptions underlying a hypothesis are outlined, and evidence for and against the hypothesis is discussed. (C) A phenomenon is described, and hypothesis concerning its occurrence are considered and rejected. (D) The reasoning behind a hypothesis is summarized, evidence supporting the hypothesis is presented, and research that counters the supporting evidence is described. (E) A hypothesis is discussed, evidence supporting the hypothesis is revealed and qualified, and a working model derived from the hypothesis is suggested.