Question ID:PT93 S3 Q20 Passage:Psychologist:  In an experiment, business managers who normally drank coffee on a daily basis were given more than their normal amount. The managers got faster at processing new information, but were less able to integrate it with past information when making decisions. Because successful management depends more on integrating information than on speed, this study demonstrates that drinking more coffee than usual impairs overall management ability. Stem:Which one of the following is an assumption on which the psychologist's argument depends? Correct Answer Choice:DChoice A:The business managers in the experiment were different from each other in both the speed at which they processed information and in their ability to integrate information. Choice B:Drinking less coffee than usual would not impede a manager's overall management ability as much as would drinking more coffee than usual. Choice C:There is no other factor that is more important to successful business management than either speed of processing information or ability to integrate it. Choice D:In the experiment, drinking more coffee than usual did not have beneficial effects on overall management ability that outweighed the reduction in ability to integrate past information. Choice E:The amount of coffee one drinks is the most important factor influencing the speed at which one processes new information.