Final answer:
The top tier of Maslow's Hierarchy of Needs is self-actualization, where individuals achieve personal growth and realize their full potential after fulfilling their more basic needs.
Step-by-step explanation:
The final and top tier of Maslow's Hierarchy of Needs is self-actualization. This level represents the fulfillment of one’s potential and the realization of one’s abilities and qualities. It is where individuals strive for personal growth, peak experiences, and creative expression, having already met their basic needs for survival, safety, belonging and love, and esteem. Self-actualization is achieved when a person is able to take full advantage of their talents while still being mindful of their limitations.