The Popir dance of the Monpa and Sherdukpen tribes is known for its:

Slow and graceful movements
Use of masks
Depiction of mythical stories
Vigorous footwork

The correct answer is: d) Vigorous footwork.

The Popir dance is a traditional dance of the Monpa and Sherdukpen tribes of Arunachal Pradesh, India. It is a vigorous dance performed by both men and women, and is characterized by its fast-paced footwork and intricate steps. The dance is often performed during festivals and other special occasions, and is a popular way for the tribes to celebrate their culture and heritage.

The other options are incorrect because:

  • Option (a) is incorrect because the Popir dance is not known for its slow and graceful movements. It is a vigorous dance with fast-paced footwork.
  • Option (b) is incorrect because the Popir dance does not use masks. The dancers wear traditional costumes, but they do not wear masks.
  • Option (c) is incorrect because the Popir dance does not depict mythical stories. It is a dance that celebrates the culture and heritage of the Monpa and Sherdukpen tribes.