How do visual aids facilitate learning?

Visual aids facilitate learning primarily by enhancing understanding and retention. They do this because they provide a tangible representation of information, making abstract concepts more concrete and easier to grasp. For instance, diagrams, charts, and images can illustrate relationships and processes that might be difficult to convey through text alone. When learners can see information visually, they can often process it more effectively, which allows for improved comprehension.

Additionally, visual aids can break down complex information into digestible parts, aiding in memory retention. The combination of visual stimuli with verbal content engages multiple senses, which is known to enhance learning experiences. This multisensory approach helps learners to form stronger associations with the material, making it easier to recall information when needed.

In contrast, confusing students or making information less engaging would detract from the learning process, and limiting the scope of material covered might hinder a comprehensive understanding of the topic. Thus, the ability of visual aids to clarify and reinforce learning is what makes option C the correct choice.