Explanation:

- Option 1: Assam

- The Dhoti-Gamosa is a traditional textile symbol of Assam.

- The Gamosa is a red and white rectangular cloth with floral motifs, primarily used during cultural ceremonies and as a sign of respect.

- The Dhoti is a type of traditional garment worn by men in Assam, especially during festivals and cultural events.

- Option 2: Meghalaya

- Meghalaya is known for different traditional attires like the Jainsem for women and Dhara, but not specifically the Dhoti-Gamosa.

- Option 3: Uttar Pradesh

- Uttar Pradesh has a diverse range of textiles like Banarasi silk but is not associated with the Dhoti-Gamosa.

- Option 4: Nagaland

- Nagaland is famous for its colorful tribal shawls and garments, not the Dhoti-Gamosa.

Correct Answer: Option 1: Assam