Concept:Child-centered learning places the child at the centre, giving importance to their experiences and needs. In such a classroom, students actively participate and build knowledge with guidance from the teacher. Explanation:The teacher acts as a facilitator, not a dictator. Students are encouraged to explore, ask questions, and work at their own pace. Learning happens through collaboration, discussion, and hands-on activities. The teacher and students together create meaning, so knowledge is co-constructed. This approach respects each child’s learning style and promotes holistic development. It rejects passive learning or dependence on rewards and punishments. Answer:Option C: is co-constructed by the teacher and students.