To answer this question, you need to understand the significance of the Dussehra festival in the northern part of India.
Option A) Mahishasura - This option is incorrect because Dussehra does not celebrate Rama's victory over Mahishasura. The victory over Mahishasura is celebrated during the festival of Durga Puja.
Option B) Kumbhakarna - This option is incorrect because Dussehra does not celebrate Rama's victory over Kumbhakarna. Kumbhakarna was a character from the Hindu epic Ramayana, but his defeat is not specifically celebrated during Dussehra.
Option C) Vali - This option is incorrect because Dussehra does not celebrate Rama's victory over Vali. Vali was also a character from the Hindu epic Ramayana, but his defeat is not specifically celebrated during Dussehra.
Option D) Ten-headed Ravana - This option is correct because Dussehra celebrates Rama's victory over the ten-headed demon king Ravana. Ravana was the primary antagonist in the Hindu epic Ramayana, and his defeat by Lord Rama is commemorated during Dussehra.
The correct answer is D) Ten-headed Ravana. This option is correct because Dussehra celebrates Rama's victory over Ravana, symbolizing the victory of good over evil.