一道句子填空题，求指教！

小兔子小鸭子

Most histories of science are success stories that conclud on __  note with the fin __ of a theory that is the basis of subsequent inquiries by later researchers.
A: a retrospective ... extrapolation
B: an analytic ... rebuttal
C: an objective ... rationalization
D: a positive ... refutatution
E: a triumphal ... ascendancy

snowmelt

感觉像是A，回顾和预测。
历史是对过去故事的回顾同时为后来的研究做好准备。
不知道对不对。

xiuyuan

答案是A吗？
谢谢，请告诉我们答案是啥哈