Final answer:
b) Long-term memory is the relatively permanent and limitless storehouse of the memory system.
Step-by-step explanation:
The relatively permanent and limitless storehouse of the memory system is called long-term memory. Long-term memory is a type of explicit memory, which refers to memories that we consciously try to remember and recall. It is divided into episodic memory, which contains information about events we have personally experienced, and semantic memory, which contains general knowledge and facts.