[Solved] What is true of the lunar highlands? A)They are found on the Moon's northern hemisphere. B)They are less heavily cratered than the mare. C)They are the darker regions of the Moon seen with the naked eye. D)They are younger than the darker mare. E)They are the oldest part of the lunar surface. Recall: The mental process of retrieving information from the past, without the aid of external cues. Atkinson-Shiffrin Model: A theory of human memory that proposes memory is processed through three systems: sensory memory, short-term memory, and long-term memory. Memory: The mental capacity to store, retain, and recall information and experiences from the past. Working Memory System: A mental system that has a restricted ability and is in charge of briefly maintaining information ready for processing.