What term describes the various methods in which knowledge is stored in memory, preserving information and interpretations of objects and events?

The term "mental representations" is indeed the correct choice, as it encompasses the idea that knowledge is stored in our minds in the form of images, concepts, or schemas that represent the world around us. This concept captures how we internally visualize or conceptualize both objects and events, allowing us to make sense of our experiences and recall information. Mental representations play a crucial role in cognitive processes such as perception, memory, and reasoning.

In contrast, while "memory structures" could refer to the organization of information within memory, it does not specifically illustrate how knowledge is mentally visualized or interpreted. "Symbolic representations" specifically involve the use of symbols to convey ideas or concepts but do not encompass the broader cognitive processes. Similarly, "propositional networks," which refer to the interconnections of statements or propositions within our cognitive frameworks, focus more on the relationships between knowledge rather than the representations themselves. Thus, "mental representations" most accurately describes the various methods through which knowledge is organized and interpreted in memory.