Final answer:
The element associated with releasing mental energy and beginning to think, plan, and talk is the Air element, which is linked to mental activities and communication in ancient philosophical systems.
Step-by-step explanation:
The element that releases mental energy and begins to think, plan, and talk is the Air element. In various philosophical and mystical systems, such as those discussed by Empedocles, the basic elements include Earth, Air, Fire, and Water. Air is often associated with mental activities and communication. In the context of this question, the element responsible for mental energy and planning aligns with the qualities traditionally attributed to Air in these ancient systems of thought.
Answer: B) Air