【单选题】

Which of the following best describes the organization of the third paragraph of the passage
A．(A) A theory is proposed, considered, and then amended.

B．(B) Opposing views are presented, elaborated, and then reconciled.
C．(C) A problem is described, then a solution is discussed and its effectiveness is affirmed.
D．(D) A view is advanced, then refuted, and an alternative is suggested.
E．(E) A hypothesis is presented, qualified, and then reaffirmed.