Concept:Vygotsky’s sociocultural theory states that social interaction and culture are central to learning.Explanation:Vygotsky believed learning is shaped by interactions with others, not by isolated practice or repetition.He introduced the Zone of Proximal Development (ZPD) – the gap between what a child can do alone and what they can do with help.Learning happens when a child works with a more knowledgeable person, like a teacher or peer.This makes learning a social activity, not a result of drill, conditioning, or independent of development.Answer:A. is a social activity.