Final answer:
The correct components that make up the hippocampus and entorhinal cortex are the Hippocampus, subiculum, and the entorhinal cortex itself. These areas are interconnected and play crucial roles in memory formation and processing.
Step-by-step explanation:
The components of the hippocampus and entorhinal cortex are indeed tightly interrelated within the broader context of brain anatomy and function. When delineating these regions, particularly in reference to option 1) Hippocampus, subiculum, entorhinal cortex, it's essential to recognize that the hippocampus is a critical structure for memory formation and spatial navigation. The subiculum serves as a transitional area, which both receives input from and sends output to the hippocampus, playing a role in memory processing and consolidation. The entorhinal cortex acts as a hub in the medial temporal lobe memory system, providing a major input and output pathway to the hippocampus and is instrumental in the encoding of environmental and spatial cues for memory formation.