Question ID:PT35 S4 Q8 Passage:It is widely believed that by age 80, perception and memory are each significantly reduced from their functioning levels at age 30. However, a recent study showed no difference in the abilities of 80-year-olds and 30-year-olds to play a card game devised to test perception and memory. Therefore, the belief that perception and memory are significantly reduced by age 80 is false. Stem:The reasoning above is most vulnerable to criticism on the grounds that it fails to consider the possibility that Correct Answer Choice:EChoice A:the study's card game does not test cognitive abilities other than perception and memory Choice B:card games are among the most difficult cognitive tasks one can attempt to perform Choice C:perception and memory are interrelated in ways of which we are not currently aware Choice D:the belief that 80-year-olds' perception and memory are reduced results from prejudice against senior citizens Choice E:playing the study's card game perfectly requires fairly low levels of perception and memory