PT 7 S1 Q24

Many major scientific discoveries of the past were the product of serendipity, ... ...

Which one of the following is an assumption on which the argument depends?
(A) Only findings that an investigator purposely seeks can directly bear on that investigator's research.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in NP: Practice Set 3 - Mix (25 Q)