Concept:Curriculum is the complete set of experiences a child gains through school and beyond, not just subjects or topics.
Explanation:A curriculum includes the syllabus, different topics, subject matter, teaching methods, activities, and all experiences within the school environment.
It covers formal and informal learning at school, home, and society.
Therefore, each given option—topics of concepts, subject matter, and activities/experiences—is part of the curriculum.
Answer:D. All of the above