The traditional conical hats worn in Arunachal Pradesh, made of bamboo and cane, are called:

The correct answer is: b) Riglep.

A riglep is a traditional conical hat worn in Arunachal Pradesh, India. It is made of bamboo and cane, and is often decorated with beads and feathers. The riglep is a symbol of the Adi tribe, and is worn by both men and women. It is believed to protect the wearer from the sun and rain, and to ward off evil spirits.

The other options are incorrect.

• A bopa is a type of hat worn in the Indian state of Assam. It is made of cloth or bamboo, and is often decorated with beads and flowers.
• A pasi is a type of hat worn in the Indian state of Himachal Pradesh. It is made of wool, and is often decorated with embroidery.
• A gale is a type of hat worn in the Indian state of Uttarakhand. It is made of cloth, and is often decorated with beads and flowers.