Final answer:
Erikson's Human Development Theory emphasizes social interactions and ego identity, with the development of personality occurring through different stages of life. It highlights the importance of positive social interactions for healthy personality development.
Step-by-step explanation:
Human Development Theory According to Erikson
The focus of Human Development Theory, according to Erik Erikson, is how personality and self-identity are developed throughout the various stages of life. Two key elements that Erikson emphasized in his theory were social interactions and ego identity. Particularly, his psychosocial development theory underscores the influence of social relationships and the tasks we must resolve during different stages of our lives. Each stage is characterized by a specific conflict that must be overcome, such as developing autonomy in childhood or achieving integrity in old age.
Engagement with the social environment is crucial according to Erikson, meaning that positive social experiences are fundamental to developing a healthy personality. Thus, the answer to the original question relates to the importance of (c) positive social interactions in human development according to Erikson. Structured as eight distinct stages, mastery of each stage's specific psychosocial task leads to a healthy personality and a strong sense of competence.