Concept:The EVS curriculum is based on the idea that learning happens through social interaction, collaboration, and cultural context. This is known as the Social-Constructivist theory.Explanation:Social-Constructivist theory states that knowledge is built together with others, not alone. In EVS, students learn by discussing environmental issues, sharing ideas, and working in groups. They explore local problems, talk to the community, and find solutions together. This approach makes learning meaningful and helps students understand how humans and the environment are connected. The curriculum encourages teamwork, group activities, and real-world problem-solving. This is why Social-Constructivist theory is the correct foundation of EVS.Answer:C. Social-Constructivist theory