【单选题】

Which of the following best describes the function of the third paragraph of the passage

A、It offers evidence that contradicts the theory outlined in the previous paragraph.
B、It presents a specific example of the application of the theory discussed in the previous paragraphs.
C、It explains data that the researchers mentioned in the first two paragraphs have yet to successfully analyze.
D、It qualifies the statistical evidence described in the previous paragraph.
E、It begins a detailed description of the theory roughly outlined in the previous two paragraphs.