A. (Sunrise) most effectively translates a concept into a mental picture. It is the best option because of the actual descriptors that paint an image. B does not paint an image it simply states an event and is barely related to the concept of freedom. C does paint an image but it is not really related to the concept of studious. Finally, while D. (Rumors) does have a strong relation to its sentence, it creates a feeling and a scent more than an image.