One of the most widely cited articles in psychology is George Miller's (1956) article on the size of short-term memory. According to your text, this article was important in cognitive psychology becausea. it clearly established the rigid limits of short-term memory's size. b. it demonstrated that short-term memory was distinctly different from long-term memory. c. it focused on a cognitive process—mentally converting the stimulus—at a time when most psychologists focused on people's external behavior. d. it showed that the key to the limits of short-term memory was the amount of time required to pronounce the stimuli.