Final answer:
The development theory that states human development results from interactions with the social environment is Lev Vygotsky's sociocultural theory.
Step-by-step explanation:
The belief that human development is the result of interactions between people and their social environment most closely aligns with the sociocultural theory of development proposed by Lev Vygotsky. Vygotsky emphasized that development cannot be separated from the context of social and cultural life. This contrasts with the theories of Jean Piaget, who focused on cognitive development stages, Erik Erikson, who developed the stage theory of psychosocial development, and Albert Bandura, who presented a social-cognitive perspective that includes learning and cognition as part of personality development.
To answer the student's question, human development stemming from interactions between individuals and their social environment is associated with the work of Lev Vygotsky.