The best expository presentations A. cover as much information as possible using visual aids in order to keep text to a minimum.
B. focus heavily on many details in order to ensure that the audience learns. C. rely heavily on emotional and rhetorical devices to persuade audiences. D. cover only a few key sub-points and use visual aids carefully and effectively.
In my opinion A, bc if you take out it and say "He had a relaxed attitude about studying for the important exam" is sounds as if being relaxed was actually good.
