单选题 Which of the following best describes the organization of the third paragraph of the passage?

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