Question ID:PT46 S2 Q22 Passage:Detective:  Laser-printer drums are easily damaged, and any nick in a drum will produce a blemish of similar dimensions on each page produced by that printer. So in matching a blemish on a page with a nick on a drum, we can reliably trace a suspicious laser-printed document to the precise printer on which it was produced. Stem:Which one of the following, if true, most weakens the detective's argument? Correct Answer Choice:CChoice A:Criminals are unlikely to use their own laser printers to produce suspicious documents. Choice B:Drum nicks are usually so small that it requires skill to accurately determine their size and shape. Choice C:The manufacturing process often produces the same nick on several drums. Choice D:Blemishes on documents are sometimes totally concealed by characters that are printed over them. Choice E:Most suspicious documents are not produced on laser printers.