Concept:The social science textbook should not be the only learning resource. It must encourage students to explore beyond its pages and engage in further inquiry.Explanation:The National Curriculum Framework (NCF-2005) stresses that learning goes beyond a single textbook. Textbooks should help teachers create experiences suited to children’s nature and surroundings. In a diverse society, textbooks must represent all regions and groups so that every child can connect with them. Relying on just one textbook limits innovation and active participation. Therefore, teachers should use the textbook as a starting point to open up avenues for further inquiry. This approach promotes deeper reading, observation, and critical thinking. Teachers must not depend solely on textbooks; they should integrate multiple resources to enrich the learning process.Answer:D. opening up avenues for further inquiry