According to the Research on the Classic "Selection Task" (Involving

According to the research on the classic "selection task" (involving the cards that contain a letter and a number) ,

A) accuracy often depends on factors such as the concreteness and familiarity of the problem.
B) performance is better when people use top-down processing.
C) surprisingly, people perform better when the task is abstract than when it is concrete.
D) people prefer to use syllogisms, rather than conditional reasoning.