PT 56 S4 Q21

Passage A      There is no universally accepted definition within ... ...

Which one of the following is a principle that can be most reasonably considered to underlie the reasoning in both of the passages?
(A) A definition that is vaguely formulated cannot serve as the basis for the provisions contained in a document of international law.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: Comparative Reading