PT 62 S4 Q15

Jewel collectors, fearing that their eyes will be deceivedby a counterfeit, ... ...

Which one of the following principles, if valid, most helps to justify the reasoning in the argument above?
(A) Jewel collectors should collect only those jewels that provide the most aesthetic pleasure.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-B, Dec. '10 LSAT (PT 62 Sec. 4)