Districts play a role in preserving the cultural diversity of Arunachal Pradesh by:

The correct answer is: d) All of the above

Districts play a role in preserving the cultural diversity of Arunachal Pradesh by showcasing local traditions, promoting tribal languages, and supporting festivals and events.

• Showcasing local traditions helps to raise awareness of the unique cultures of the different tribes in Arunachal Pradesh. This can be done through a variety of means, such as organizing cultural festivals, showcasing traditional arts and crafts, and promoting traditional music and dance.
• Promoting tribal languages helps to ensure that these languages are not lost or forgotten. This can be done through a variety of means, such as providing language classes, offering bilingual education, and promoting the use of tribal languages in government and public services.
• Supporting festivals and events helps to keep these traditions alive and vibrant. This can be done through a variety of means, such as providing financial support, offering logistical support, and promoting these events to the wider public.

All of these activities help to preserve the cultural diversity of Arunachal Pradesh and ensure that these unique cultures are passed on to future generations.