Final answer:
According to Erikson, an individual who fails to achieve Eagle Integrity will experience despair and regret.
Step-by-step explanation:
In Erik Erikson's theory of psychosocial development, the challenge for individuals in late adulthood is to achieve integrity and overcome despair. According to Erikson, integrity is a sense of satisfaction and pride in one's accomplishments, while despair is a feeling of regret and bitterness. People who fail to achieve integrity may face the end of their lives with depression and a focus on what could have been. Therefore, the correct answer is 1) Despair and regret.