Final answer:
The number of chapters tested in social science for Class 10 board exams varies by curriculum and region; referencing the CBSE syllabus, more than 5 chapters are included across sections such as History and Geography.
Step-by-step explanation:
The number of chapters tested in social science for Class 10 board exams varies based on the specific curriculum and region. In India, for example, the Central Board of Secondary Education (CBSE) may have a different number of chapters compared to other educational boards. If considering the CBSE syllabus, which is frequently referred to when discussing Class 10 board exams, there are usually more than 5 chapters across different sections such as History, Geography, Political Science, and Economics. Therefore, without specific board details, it isn't possible to provide an accurate number among the given options (a) 5 chapters (b) 8 chapters (c) 10 chapters (d) 12 chapters. It is always best for students to refer to the latest syllabus issued by their educational board for the most accurate information.