Concept:Lev Vygotsky's socio-cultural theory states that social interaction and culture are essential for cognitive development.Explanation:Vygotsky believed learning happens when a child interacts with their culture.Culture provides tools like language and beliefs that shape thinking.Culture does not just influence education — it actively helps learning take place.Therefore, culture is a facilitating factor, not the only determinant or outcome.Answer:D. Culture is the facilitating factor of learning