PT 62 S4 Q23

Film preservation requires transferring old movies fromtheir original material—unstable, ... ...

Which one of the following is an assumption on which the argument depends?
(A) No new technology for transferring old movies from nitrate film to acetate film will ever be developed.
(B) ...
(C) ...
(D) ...
(E) ...

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