Concept:Vygotsky’s Socio-cultural Theory says social interaction is key for learning. He introduced the Zone of Proximal Development (ZPD).Explanation:Vygotsky believed knowledge is co-constructed. A child can do some tasks alone and more tasks with help from others. This range is the ZPD. So learning happens through support, not passive absorption or reward-based control. The correct option matches this idea of co-construction with guidance.Answer:D. knowledge is co-constructed in a zone of what the child can do independently and with support from others.