Question ID:PT93 S2 Q18 Passage:In an experiment, each of 200 randomly selected people was videotaped while describing action-packed excerpts from previously unfamiliar cartoons. Half the subjects were allowed to gesture while speaking, and the other half were not. Those who gestured spoke more quickly and repeated themselves less. This indicates that gesturing helps speakers quickly find the phrases they want. Stem:Which one of the following, if assumed, enables the conclusion in the argument to be properly drawn? Correct Answer Choice:CChoice A:Ordinarily almost everyone regularly gestures when speaking quickly and with little repetition, regardless of the topic being discussed. Choice B:The cartoons were chosen by those who conducted the experiment and were selected from a variety of sources. Choice C:Any form of behavior correlated with quicker speech and less repetition in speech helps speakers find the phrases they want quickly. Choice D:Any form of behavior that helps speakers quickly find the phrases they want also enables them to speak more quickly and repeat themselves less than they would if they were not engaged in that behavior. Choice E:Of the subjects who were allowed to gesture, those who spoke the most quickly and repeated themselves least were among those who gestured the most.