Step 1: Concept Identification: The query requires identifying the folk dance that symbolically reenacts the conflict between the goddess Durga and the demon Mahishasura, a central theme of the Navaratri festival.
Step 2: Analysis of Options:
1. Dollu Kunitha: A forceful drum dance from Karnataka, performed by the Kuruba community to honor Beereshwara.
2. Dāndiyā Raas: A popular Gujarati folk dance performed during Navaratri. Dancers use decorated sticks called \textit{dandiyas}. This dance symbolizes the battle between Durga and Mahishasura, with the \textit{dandiyas} representing the goddess's swords and their clashing signifying the intense combat.
3. Rauf: A graceful Kashmiri folk dance performed by women during celebrations.
4. Kālbeliā: A vibrant Rajasthani dance by the snake charmer community, characterized by serpentine movements.
Step 3: Conclusion: Dāndiyā Raas depicts a mock battle between Durga and Mahishasura, making option (2) the correct answer.