Which of the following, if true, would weaken the researchers' argument? A. Roman artisans were influenced by their Greek predecessors and often translated designs of Greek Miniature engravings into Roman designs. B. Nearsighted individuals are less able than those with ordinary vision to identify objects that are at a great distance from them. C. Magnifying glass was not used as a visual aid until the thirteenth century, when Roger Bacon inverted eyeglasses. D. Artisans today are unable to reproduce the miniature engravings of ancient Greek artisans without the aid of high-powered magnifying lenses, first produced in the thirteenth century. E. The eyesight of nearsighted individuals and those with ordinary vision is not significantly different if the objects viewed are less than a few feet away.