Which of the Following Is a Major Problem of After-The-Fact

Multiple Choice

Which of the following is a major problem of after-the-fact or "hindsight" explanations?

A) There are many ways of explaining past events and there is usually no way to know which of these explanations is correct.
B) Hindsight explanations fail to provide a foundation on which further scientific study can occur.
C) Science requires that theories be testable and hindsight explanations are usually too theoretically complex and sophisticated to be testable.
D) Hindsight explanations overemphasize the importance of external validity.