Final answer:
Chao's goal to 'be all that he can be' in life illustrates the self-actualization level of Maslow's hierarchy of needs, which is the highest level focused on achieving one's full potential.
Step-by-step explanation:
The level of Abraham Maslow's hierarchy of needs reflected in Chao's attitude is self-actualization. This is the highest level in Maslow's pyramid, where the goal is to achieve one's full potential across all aspects of life, which includes personal growth, peak experiences, and the realization of personal capabilities. This level is placed at the apex of the pyramid and involves making full use of one's talents, capabilities, and potentialities. These are individuals who are fulfilled and doing all they are capable of. The desire for self-fulfillment is indeed a universal desire, but achieving self-actualization or personal growth relies upon having the other previous levels of needs well satisfied.