The correct answer is: d) All of the above.
The Tamil Nadu government promotes the Tamil language and culture through a number of institutions, including the Tamil Nadu Textbook and Educational Services Corporation, the Tamil Nadu Iyal Isai Nataka Mandram, and the Central Institute of Classical Tamil.
The Tamil Nadu Textbook and Educational Services Corporation is responsible for publishing textbooks and other educational materials in Tamil. The Tamil Nadu Iyal Isai Nataka Mandram is a cultural organization that promotes Tamil music, dance, and drama. The Central Institute of Classical Tamil is a research institute that studies the Tamil language and literature.
These institutions play an important role in promoting the Tamil language and culture. They provide resources for students and teachers, they organize cultural events, and they conduct research on the Tamil language and literature.
The Tamil Nadu government is committed to promoting the Tamil language and culture. These institutions are just one example of the many ways in which the government is working to achieve this goal.